Do you think there is ever a good reason to shut ourselves off from others? Explain?

From society, no. The more people you meet, the more you learn.

From certain people, yeah. When the people you met turn out to be douchebags, you shut yourself away

Normally I would say that meeting more people is better, but if you look at Muhammad, who shut himself off from everyone else for many years in caves just to pray and get closer to God, and he's really famous. That was just something I know.