yeshivaguy45,
I don’t know where you are hailing from, and maybe out of town is different, but when I grew up the Yeshiva used to take the (elementary school) kids to baseball games for lag b’omer and it was quite common for yeshiva bochurim to go to baseball games bein hazmanim.
I know that in Lakewood they don’t allow it and for the most part it is not done, but I think that in most American cities baseball games are considered good clean entertainment.