At the barn where I ride there are several girls who work there. They are young (about my age, 16, 17, 18ish). They are very helpful and help me tack up, groom the horses, and get acquainted with the equipment. I'm not sure if I'm supposed to tip these people. I haven't for the first few lessons. I don't know if other people are tipping them and I don't want to be "that jerk". On the other hand, I don't want to be that weirdo who tries to shove cash in everyone's face.
Do people usually tip these people or not?