Well ideally that's what I'd do, except that in my experience anyone under 18 isn't allowed to do anything more ambitious than coach cleaning on preserved railways.
W&LLR example.
Average teenage volunteer will start cleaning engines/coaches or become an assistant guard 14+. At 16 they can train as a guard or as a Fireman. At 18 they can train to be a diesel driver. at 21 they can, if they show promise become a trainee driver. They could also be a trainee stationmaster/controller by then.
To be honest I started at age 4 helping my dad, passing tools etc, and have gone on from there, things have changed a bit in 14 years though.


