Could be recency bias, could be that fashion is a cycle that repeats and old fashions are rediscovered.
Could be laziness because at some point it becomes easier to trim a beard once every month than shave everyday.
Some people's skin also can't handle daily trauma from razors.
It also looks more interesting than a vanilla clean shave, imo. People might be looking to stand out for that reason.
More seriously, first get really in touch with your phyche. It's hard to underestimate how fucked we can be as individuals when we're bathing in our parents issues. Don't be afraid to consult a mental health specialist, if not in your budget (for US reasons) find friends you can confide in without feeling judged (tall order if you don't have them already I know) or just get a good round of introspection/meditation.
A lot of issues I see adults do is because they never learned to live with themselves and therefore never learned to know themselves, so they're slaves to their own ignored/repressed feelings.
A healthy mind in an healthy body is maybe a cliché, but it will take you far and they usually go hand in hand anyway.
Life is not an action movie. If that actually happened I wouldn't be blindly throwing myself in the middle of a group of armed/dangerous guys. I'd be calling the cops (they're more trained than I am to handle the situation) and freak out hoping nothing bad happens to her.