My dad is. Don't go with red or aa go self employed. Reason being they were asking ridiculous amounts to use their car so really wasn't worth doing by the time u pay them off
Dad is doing it himself and has at least 2/3 a day (has morning job) so teaches after that All students have gone thru word of mouth as he has no advertising as he doesn't need it, yet!
It's exensve to start of with, paying to learn etc and then paying to do the final exam, which is very hard.
But just think u have to get a economical car, cheap to buy, get dual controls fitted, service of car, insurance then try and work out how much u have left.
My dad is finding that it's not that much, but he ejoys driving and enjoys helping people to pass their tests

Hope that helps mate.
Just take a long and think about it especially with petrol prices and prices of lessons etc. how much are u going to earn realistically
