clairemcnam This is spot-on for me:
I have read lots of young adults who have been helicopter parented talking about how anxious it has made them. They talk about growing up being told that everything was dangerous, and not allowed to do anything for themselves.
I had a parent like this in the 1990s. I think I have something of a natural predisposition to anxiety anyway, but the combination of that and this particular sort of upbringing really didn't help.
Someone upthread gave the example of young people in their twenties being worried about going on a train journey.
I remember asking to get a train somewhere in my early teens. I was told no, for reasons including that I might get lost, miss the train, miss my stop, have problems changing trains, get mugged, get pushed onto the railway line, get kidnapped or attacked...
Some of those things are highly unlikely. Others are problems that sometimes happen with public transport and that it's useful to know how to deal with. By setting them up as disasters, something as simple as getting a train becomes something scary and that it's possible to get wrong in lots of ways. Presenting the possibility of missing your train as a reason not to travel by train, instead of an inconvenience and/or extra expense, but a solvable problem, really skews the way you think about the world.
And when it's not just trains, but anything you want to do independently, what you learn is that the world is a very scary place and that you aren't capable of functioning in it - and if you try, it's very likely that something bad will happen to you. Then suddenly you're 18 or 20 and older adults are ridiculing you for not being able to do simple things, and it makes it even more stressful because you should be able to do them, but you still feel incapable, and the idea of trying and possibly making silly mistakes because you haven't done it before seems even more overwhelming.
(I'm now past 30 and have been completely fine with trains for many years
but there are still some other instances where the anxieties creep in).