Playing devil's advocate:my parents stopped giving me money for clothes as soon as I got my first part time job (at age 16).
Wouldn't that defeat the purpose of the kid getting a job? I mean, they're working now . . . and yet with the loss of the allowance, they can't afford any more than they could when mom and dad were paying for everything? Why not have all the free time and still have the same amount of money?
I ask this because my parents used a similar approach with us, and it didn't work with all of the kids. One of my brothers in particular just didn't buy into the philosophy at all. They wanted him to work and buy himself a car. He just didn't want to work, and though he sort-of wanted a car, he wanted the free time more -- so he didn't get a license, didn't get a job, didn't get a car. And he was FINE with that. With another brother, it worked too well; he was sooo into working and earning a dollar that he essentially forgot all about school and constantly wanted to work, work, work.
It's a tricky thing to hit the right balance.