Simple: You will no longer swap phones on the fly when running out of battery during travels. Also, you will no longer swap SIMs in the same phone to avoid roaming fees when travelling to another country. Enjoy your freedom to swap SIMs while it lasts, before Android OEMs blindly copy Apple (as they inevitably will), much like when they removed FM radio and the headphone jack.

In those cases, the low-traffic zones will also become high-traffic zones, since all the self-driving cars from the high-traffic zones will go to park there.

Self-driving cars would still game the system by hopping between zones that exist around the owner. Again, it doesn't matter how far the self-driving car parks, that's the entire sell.

There will be no actual churn, and no free parking spots during busy hours.

That's unironically one of the widely-advertised benefits of self-driving vehicles: Let the vehicle park itself for you (even if it has to roam around for hours to find a parking spot), and even re-park itself to dodge time limits as needed, so you don't have to pay for private parking in congested areas. I wonder how much urban traffic 10 years from now will be self-driving vehicles searching for hours for a free parking spot (it goes without saying that humans will not be able to find any parking spots).

The only solution I can think of is to ban corporate self-driving fleets such as Waymos from public parking, but that won't solve the problem of self-driving cars owned by individuals.

Good idea until you get fined by the municipality, since putting objects on public parking spaces is illegal. Here is a better idea: Waymo shouldn't be legally allowed to use public parking spots as fleet storage. Corporate self-driving fleets shouldn't have access to public parking spots.

Remember how downloader bots pounding on the available free-tier slots of Rapidshare made the service unusable for humans? Same thing will happen with parking spots: self-driving cars will camp on public parking spots (and swap parking spots among them as needed to dodge any time limits), since companies like Wayno see no problem with using public parking spots as fleet storage (instead of investing in depots around the city). But hey, you might get lucky once a year and catch a free parking spot as a Waymo car is leaving and before the other one comes.

I should have a developer option to take the risk and allow unsigned apps if I want to, precisely due to the dumpster fire that is US laws (all major OS vendors are headquartered in the US). See how MacOS is doing it.

I can barely understand your comment, but anyway, not having open sideloading and instead forcing third-party app stores to be an app that is delivered through the first-party app store gives the OS vendor the ability to delist a given third-party app store whenever they want (for example if they stop paying the "Core Technology Fee").

And what you don't understand is that the DMCA's "anti-circumvention provisions" don't apply outside the US and not all countries have similar laws. What Google is doing (by forcing you to have your apk uploaded and signed in a specific country) is forcing every Android developer under US jurisdiction. Considering the increasing political division in the US, are you sure this is not a problem?

And you don't understand that laws such as the DMCA's "anti-circumvention provisions" (and-similar laws in other countries) make certain kinds of software illegal (from software that unlocks DRM-encrypted music files to software that can run encrypted Nintendo Switch game images), so the "I have nothing to hide" rhetoric doesn't apply when the law makes your work illegal.

Isn't that what side loading is really about?

No, another major benefit of sideloading is developer anonymity, since sideloading can be used to install self-signed apks. This is going away now, soon you'll have to submit your apk to Google along with real ID information so your apk is Google-signed (euphemistically called "remotely self-signed"). This will be an issue for developers writing apps such as YouTube Downloaders, since Google could go after them (they already have done so in the past), and developers of apps such as Switch emulators are at risk of being targeted by Nintendo. Look, I understand the scary warnings (Windows) or having to manually enable self-signed (MacOS, SymbianOS) to prevent Average Joes from installing malware APKs, but locking sideloading completely is just evil.

A "Connect App" perhaps? Anyway, no ISP does this because they'd have to support a bewildering number of OSes (including the OSes of future game consoles that don't exist yet), captive portals are such a widely-used thing for a reason (despite the whole idea of a captive portal being a gross hack).

Alternative App Stores don't necessarily have to be installed with sideloading. Sure, it's the best and most independent way of doing it, but another method is for the OS vendor to provide a "choose your App Stores" setting (kind of like the Windows Browser Ballot screen, but you can choose multiple options) or simply allow the installation of third-party App Stores from the first-party App Store as apps. Again, the DMA sees no problem with that (aka the OS vendor being an essential middleman to third-party App Stores), it even allows the OS vendor to charge a "Core Technology Fee".

An insurers reputation as a company depends on their reputation for paying out claims, so it's in their best interest to pay. The exception is health insurance in the US, since the insurers are a cartel that's in bed with the other cartel: healthcare providers/monopolies (do you really think insurers pay retail price?). This isn't the case for home insurance or car insurance. Also, people want some peace of mind that a lifelong investment like a house won't go up in smoke (literally and figuratively).

The EU has no problem with App Stores being the default or even sole mode of distribution (aka no sideloading), as long as third-party App Stores are allowed and the OS vendor's first-party App Store isn't a monopoly, the OS vendor won't run afoul of the DMA.