Now you have a point if OP never rode a bike before, I'd stay away for a while. Maybe that's why I never had any issues going back to biking .. I basically grew up on a bike. But that's not out of touch with reality. I crashed twice in the last 6 months, but I was far from breaking an arm (even though both time it was a front wheel losing balance so face first to the ground) and that didn't bother me much more (and I have a super weak health these days, I'm not a young stud in mint condition at all)
about practicality, and even safety.. I'd argue it's not as sure as it appears, at least in western european countries.. it's less risky than heavy traffic intersection in a car with crazy drivers cutting you off (with my bike I can chose 20 different routes back to home), and unsurprisingly I get there faster than with my car (no traffic jams).
If you bike slowly around cars, bad shit is even more likely to happen.
Have you ridden a motorcycle on roads before? It's infinitely safer than pedaling a bicycle among automotive traffic because you can at least keep up with the flow of traffic and behave in every sense as an automobile, in what is firmly the automobile's native land.
In the US it's exceedingly rare to live in a village with dedicated bike trails you can safely coast along. We have roads full of carelessly driven cars everywhere. Riding bicycles on those roads is quite unpleasant to say the least, based on my experience. We have reported instances of assholes "rolling coal" not only deliberately smoking out cyclists, but in some cases flat out running them over.
And we haven't even broached the subject of cycling being an acquired skill many adults plain suck at. It's complicated if you didn't grow up pedaling everywhere. Have you ever tried introducing an adult to cycling who didn't do it before? The only teaching experience more cringe-worthy I can recall was teaching someone with no manual transmission experience how to ride a motorcycle. All those moments have been hellish "I'm pretty sure I'm just helping this person get on a path leading to more convoluted self-harm" experiences. Getting them to go for a run doesn't even register anywhere on this particular map.
Back when I moved to CA for my first startup job, I had to leave my partner and our pets back in IL for a few months with family while I found us an apartment. When my partner finally showed up she had her arm in a cast, wanna guess why? Bicycle crash. She didn't have much experience riding bicycles growing up in a sea of cycling-hostile 5+-lane Florida surface streets, and crashed riding my old bicycle with my nephew passing time while waiting to relocate. Imagine how annoying that must have been to bring two housecats through TSA alone with a newly broken arm. Yeah, go ride bicycles everywhere everyone!
People that recommend everyone ride a bicycle everywhere seem to have absolutely no perspective rooted in reality. My "man up, run everywhere" comment was intended mostly tongue in cheek, but I'm willing to play devil's advocate in arguing it's obviously safer and more accessible than cycling. They're both ridiculously impractical in a world optimized for automobiles.