I may be showing my ignorance of this sports activity but I was unaware that "cheers" were, or even could be, copyrighted. As long as they are NOT protected by copyright law they fall into the public domain, and can be used by anyone.
You may want to research those cheers used by professional sports teams and colleges/universities in which they are specifically mentioned in the cheer by name and are 'identifiable' and 'particular' to those individual entities. If any cheers are liable to be 'protected', those are probably the ones which might be.
Absolutely
yes.
Ya, do it.
Check it out from a public library or rent it Otherwise you'd be violating copyright laws.
Only if his name is not on the title, and you live in a state where you can do that, without violating duel ownership under your states marriage laws.
It depends on where you live and what laws have been violated.
Nobody.
Interpreting laws and the constitutionality of those laws, and trying those accused of violating the laws.
Both
If he mature enough and has a safe environment were he/she can conduct airsoft games without violating property laws or making anyone angry.
Violating Copy Right Laws!Violating Copy Right Laws, creating unsocial contents (such as sexuality, violence etc), Harming Environment by the product designed etc.
Yes, it is legal to listen to YouTube videos as long as you are not violating any copyright laws, such as downloading or distributing the content without permission.