When I was in Sunday School, aged about 5, the minister asked all the children what they wanted to be. All the boys wanted to do active, exciting things such as firemen, soldiers or pilots. The girls all said they wanted to be nurses or ballerinas until he got to me.
I said I wanted to be an engine driver and was mortified when the whole room collapsed in gales of laughter. Gently, it was explained to me that little girls couldn't be train drivers; don't ask why, dear, you just can't.
Imagine how pleased I was to learn in my 20s that I could now drive a train. Admittedly, it would be an electric multiple unit and not a wonderful hissing, clanking, chuffing great steam locomotive but still, a train.
Then I found out my myopia and astigmatism meant I'd never pass the medical! Sometimes, life kicks you in the gut!
(But I did manage to have a lot of fun and earn a living doing all the things I did do instead).