Couldnt agree more.

It is a roleplaying game after all. Conflict resolution can even be fun if the players are into it.

For longer campaings with a set group of friends we dont even start the campaing with “all PCs are friends”. I just make them meet and tie their interests together so they kinda have to work together. Friendships develop over time.

But I would never, under any circumstance, allow for bullying or teasing even among characters.