You have got to be kidding. Yes, those cars were easy to work on, they had to be as they required constant service. Ever wonder why all the 'service stations' became 'mini-marts'? Because new, electronically-controlled, cars no longer provided the steady cash stream that all that mechanical crap did.
I remember when I was a kid in the 60s that a big part of the family vacation budget was 'get the car ready.' Going on any trip of more than a few hundred miles meant 'major tuneup' - points, plugs, distributor cap, rotor, idle adjustments, etc. And of course it had to be done ahead of time, because there was a fairly good chance that something would not be right and it would have to go back.
My current car has 102K miles on it, and the only service it has ever required is fluid and belt changes.
Exactly.
Today's modern car got to be "twist and go" - you insert key, twist, and car is running. Doesn't matter if it's -40C or +40C (let's say -40F to 100F).
Hell, you can even put the wrong octane gas and it'll still work! (if it needs premium, you can put in a tank of regular and it won't kill itself from knock/preignition). The computer handles it just fine. And while not wholly recommended, normal consumer level cars that say they need mid-grade often run just fine on regular (I won't do it to say, a BMW, but a Toyota or Honda? Sure).
Plus, starting the car after it's been running for a while doesn't result in vapor lock.
And let's not forget all things mechanical are perfect, for more than one automatic transmission has needed recall because a hole was 1/32" an inch too small. (The hole was in the control unit - a mechanical computer, if you will).
In fact, if you want to "go back to the good old days" take up flying. Small piston single engine planes are purely all mechanical for the most part - the spark's done by magnetos, even. You manage the carburettor (some have fuel injection, but it's continuous, always spraying fuel), the mixture, etc.
And many pilots are anticipating the day when instead of all that, they have a simple throttle and the rest of that stuff is managed by a computer (FADEC - Full Authority Digital Engine Control) - two of them for redundancy.
Hell, with something as "complex" as a servo-controlled throttle has gotten rid of annoyances like stuck throttle cables.
The modern car is actually very freaking reliable. You won't believe how far some people will actually run them - they will buy a 25 year old car for $1000 and literally run it into the ground - oil changes? Well, they'll dump a quart in every month of so. Check engine light? Been on for 10 years, if it hasn't burned out yet. Yeah, it doesn't perform as good, the transmission is laggy and all that, but even a simple tune up costs more than the car's worth.