how old do you have to be?
Yes you can work at a hair salon you may just be sweeping up the hair and making tea/coffee but after a while you can go to college and take a hairdressing course whilst youre still working at the salon and they will teach you there along the way too
i think u'll need a degree on cosmotholigee (prbly spelled that wrong) i presume good hair saloons would wanna hire professionals with some kinda degree. my sis took a ~6mths course it think to get her degree in cos she works in Regis now.
You can work without a degree if you work under someone. You have better chances of getting an apprenticeship at a non-chain salon than one like supercuts and fantastic's sam.
To be working on people and their hair, you need a degree. To just be a clean-up person, like sweeping, wiping counters down.. ect.. I think you can do that.
You can work under someone else and probably will be doing things like sweeping up and just helping out others.