Conflicts are speed bumps. You have to slow down in order to deal with them instead of driving out of your way to avoid them.
You do not avoid speed bumps because you do not want to disobey the laws but because you do not want to get caught
You do not avoid conflict because you do not want to hurt their feelings but because you don't want to hurt their feelings to their face
Allow people to speed over speed bumps to learn not to speed over speed bumps
Allow teammates to do conflict poorly to learn how to handle conflict well
Communities without conflict are contrived