My daughter works at a camp.
She is a lifeguard, teaches swim lessons and is a bus counselor. She has campers with developmental delays as well as students as young as 4 to 17 on her bus. She had to get Epi Pen trained for this years bus route. She also volunteers to teach swimming to the campers with special needs- no other lifeguard volunteered.
She gets TIPS! Last year she got more tips than her salary (which was only a few hundred dollars for 8 weeks of work) Last year she was pool staff-- not a certified lifeguard, as she is this year.
She gets tips as a swim lesson teacher (usually unheard of), and tips as a bus counselor, and tips as a lifeguard (usually unheard of)
In fact the camp she works websites states that tipping can be done-- and gives suggested amounts. Did she get a tip from everyone? No-- she got some notes, cards, candy and quite a bit of CASH (over $500 worth- almost $600)
This year she has gotten a few tips already-- all cash. Parents also ask if she will babysit for them as well- so she has steady babysitting gigs from this camp.
Some counselors make less than $100 a week. Is it there choice to take the counselor job? Yes, but it is difficult to find teen jobs around here (most places are all over 18). The bunk counselors get tips to offset the wages.