Omg this is really old post 😭, I’m surprised you found it xd
Assassination classroom is a VERY good anime, I loved watching the characters grow and the bond they share with their teacher, it’s has a sad ending also 😢. I don’t really know if it’s for younger audiences, I would maybe say it’s for like 14 or older. It’s not really that “gory” but still. The most bad stuff it’s probably kidnapping, violence, foul language (I think) and sexual assault/female harassment. You should watch it if your mature enough for that content ^^
Highly recommend it