I am 21 and in my part time job I get paid £8 an hour, but thats still quite a lot less than I would get if I had a degree and was full time. It can be quite stressful when things don't work and I hate having to keep askling the boss for help, although he said its fine because they were not expecting somebody fully qualified for £8 an hour (the market rate is more like £15 an hour for my job).
I am more than happy with my pay though, I least I don't need to clean toilets or do anything physical in my job.