I only just read >>2's post, and realised I posted something totally contradictory.
Personally I think the cashier job helped me out alot at the beginning, but now that I've picked up the skills I needed, it's getting a bit limiting. Hence I am looking for more people-work now. But I reckon if you threw me down in the deep end of having actual coworkers at the beginning, I would have sunk, and kept to myself.