Should boys and girls be in separate classes?

Hell to the no

Explanation:

Mixing these classes results in less hate, jealousy, and negative experiences.

Sure boys may tease girls, and girls may tease them back, but if we keep them separate, then wee isolate. This results in even worse social anxiety and uncomfortableness, and can lead to judgement, such as "I play soccer because I am a boy, which means that girls cant do that because they are bad at it", or "I can do gymnastics because I'm a girl, so any boys that do it are weird". Overall it would destroy any chances of breaking gender norms or giving kids a chance to be themselves, that's no bueno.