Train myself at the gym? Boxing...

I went to a boxing gym (legit fighters gym, no classes etc) to get more info and the owner/head trainer told me that the gum membership is $25 a month and that I could train whenever. He said that most of the trainers are busy training guys who fight and that I was welcome to train there and that people would help out if they seen me doing something wrong and if one of the trainers noticed me that they would give make me an offer for training if they seen potential in me. However, I'm 21 yrs old and not necessarily training with the goal of turning pro or even fighting (unlike the majority). Would it even be worth training there? Just going in and doing whatever? Curious to hear some thoughts.

Thanks.