have you ever been to prison? it is a tough life in there. no matter what you did or whether you were wrongly accused for something, prison is not for everyone. it is obviously lonely as you gets separated away from your family. it can get boring, not being able to do what you want.
Personally, I think that those who are in prison are not like other ordinary people because they are there as punishment for committing crimes. It is definitely not a place for entertainment, so it is not right to accept that all the facilities will be there.
Yes, we see in various movies or series that gambling happens in prison, and fights happen over it, but I don't know how much it happens in reality. Because luckily, I haven't done anything that would have me going to jail.