In respect to this, what channel is anime on in Japan?
Current tendencies of the major nationwide networks. NHK is the only public broadcasting station in Japan. They don't usually broadcast late night anime on Weekdays, except for reruns. However, they broadcast late night anime on Sunday nights.
Secondly, can you get in trouble for watching anime online? Yes, it is illegal to host anime and manga scans on most of the sites from which you might read the manga/watch the anime. There are a few sites where it is legal to stream anime of which I only know of but watching/reading them from another site can't be illegal in my opinion.
Also, is crunchyroll available in Japan?
Crunchyroll is the top website if you are into anime and manga. Crunchyroll's full anime and manga library is only available in US. Therefore, you cannot watch all of Crunchyroll's videos in UK, Mexico, Canada, Japan, Australia, France or any other location for that matter.
Does everyone in Japan watch anime?
Everyone has a different watching style, but since certain types of anime are just considered normal programming in Japan people are bound to watch them even if they don't consider themselves anime fans. Late night anime is for a different demographic than the general public.