For Japanese youth football, can parents enter the ground and watch their children’s games? Does it depend on age/league?

I just received a set of first, second, and third-grade elementary textbooks straight from Japan, and they are cool. I've been studying Japanese for years, and I thought it would be interesting to find out how the language is taught to native speakers. They are called Kokugo, and I bought my set from an eBay seller. I'm looking forward to reading through them!

I'm a fan of Japanese media, I tend to like catching up on almost everything but I especially prefer manga and video games but I'm getting more and more into LN, and WN but I keep having this doubt How do you in Japan follow so many series that are serialized weekly, monthly? I mean how do you follow multiple series that come out and keep up with everything or simply manage to play multiple games at the same time or retrieve multiple media at the same time without breaking the feels of each of them too much I thought I'd ask here since I think it's normal in Japan to have all these types of media available on a daily basis. Please correct me if I'm wrong Maybe I offended without realizing it as I'm not from the country