Mine recently ended. 15 years in Rec and Travel. Never.
I've found that parents start to get tired of hearing the same chants over and over and over at every tournament. Funny to think some of older kids actually want to participate.
The funny thing is DD's team has slowly stopped doing chants as they've gotten "older". She's only 13, but they pretty much stopped. It's just cheering and yelling from the dugout now.
Although "Taco, Burrito, but Nach-yo pitch" still pops into my head and gets stuck from time to time.