I think kids working is a wonderful idea. I was always raised to work for what you want/need. My grandfather delivered papers in his retirement to keep in shape, & I went with him every Sunday morning from the time I was probably 8 or 9 or so until he passed in 2009 (I was 15.) If I went with him on Sunday, he'd buy me that wagon I wanted. Things like that. When I was 14 I got a part-time job at a local roller skating rink, then at 15 I was hired full time at a local fast food place until I turned 16 & snagged a full time job as a front desk associate at a local Marriott hotel. All the while I had college prep/advanced classes in high school and now I'm in college. My family isn't the best off financially, but I can't complain because I have a job and we're not in any trouble. A co-worker of mine works part-time and her dad takes her paychecks and directly puts them into an account for her - this money has bought her her college laptop, dorm supplies & books. I love what her parents were able to do for her. She was saving all of this money and had no idea, but she knew she had to work for the down payment on her car.
Basically, speaking as an 18yr-old, I have to say that part time jobs are good for kids if they can get them. It teaches a wonderful sense of value, but the parents have to teach it, too. An ex-coworker worked, yeah, but his father would still come in from out of town every other week to clean up after him and buy him groceries to fill his kitchen. He also bought him a brand-new car & foots all the bills...I understand taking care of your child, but there's a point that you have to draw a line so they learn financial responsibilty.