In most countries it is illegal to park facing oncoming traffic as there is no safe way to drive off later.
How so? I'd think that pulling out into traffic coming from behind (and in the "blind spot" for most cars) is inherently more difficult than pulling out into oncoming traffic that you can clearly see without turning your head or using a rear-view mirror. Both have inherent dangers, but safely entering traffic in a way that requires watching other vehicles coming from both directions seems like the more dangerous.
So do we have statistics dealing with this? I don't think I've ever seen any, and a quick google check doesn't seem to turn up anything at all based on facts.
Also, the laws about this in the US seem to be generally local and quite inconsistent. Is there actually a federal law that deals with this? I've never heard of one, and don't seem to be able to find it. Without a few [citation needed]s, I'd suspect that people are just making rules up based on whatever they might have heard in a driver's ed class years ago. ;-)
Hereabouts (western suburbs of Boston), it's common to see cars parked on "local" streets in pretty much any orientation, and I've never heard of anyone getting ticketed for something so inherently silly. OTOH, as a student in a midwestern university a few of decades back, I do recall my surprise when I actually got a parking ticket for parking on the "wrong side". It was on a very local street that was narrow enough that two cars couldn't pass if there were cars parked on both sides, and I'd parked there temporarily to make it easy to carry stuff from the car into a friend's apartment without interfering with the (minimal) traffic. At the time, I'd never heard of the concept of "parking on the wrong side". On local streets, you parked in the place closest to where you were going, though if you were a nice guy, you might also try to leave as wide a path in the center of the street that you could, so you might park farther away if there was a wide vehicle across from where you preferred to park.