99/1oo times its a no no.... i would be hy0ocritical to say never though, because i did, but here is the entire situation
I had been with a girl for about three years, cheered together at two different gyms. I aged out two years before her. Her super senior year (and super super senior year) she moved to the gym I was already coaching at to cheer closer to where her college was. I wasn't ever actually coaching her, and i did talk to the the owner and they were okay with it. And we are a very conservative gym, Sonshine Christian Academy is the facility name. had there been issues, she probably just wouldn't have cheered in college or stayed at her current gym. If it is pertinent to to this discussion, she was also an employee of the gym, 18 years old when she made the change, and I did not coach her. (and now I am happily single)
We currently have 3 employees that are still cheering at our gym (only one is a boy, but gender really doesn't matter in this case) on senior teams. Would it be the worst thing in the world for them to date another athlete? Probably not.
However, the intent of this thread is probably to focus on creepers, and i can definitely say that I will never date one of my athletes while they are cheering for me. Even if the ages were compatible (which they no longer are... .my clock keeps ticking) it just opens a floodgate, and i would prefer to not lose my career over something like that, it really is one of the stupidest moves you could ever make in this industry. we don't always get a good rep as it is. People already think its kinda weird/creepy that a grown man wants to spend time with a bunch of teenage girls as it is. Don't make it harder on yourself.