Kids with the proper tag around their neck have just as much right to be in the work out area as you. When you gripe at me that they shouldn't be allowed in if it is busy - I'll tell you they are members and get to use the equipment.
When you deliberately
1. run to cut of the mom and daughter heading to the last 2 side by side treadmills that are free - pushing the girl out of the way.
2. Call over an employee to complain the mom isn't supervising the girl because they are separated by you in between them
I will tell the employee exactly what I witnessed and do the happy dance inside my head when you are asked to leave for putting your hands on the girl.
When 2 teen aged boys are being absolute gentlemen as they work out following all the rules and you cuss them out for taking up a machine you want, I will complain about your foul language to the employee. If he doesn't kick you out, I'll ask if we need to get the manager. (Cursing is forbidden at the gym)