safe space

:  a place (as on a college campus) intended to be free of bias, conflict, criticism, or potentially threatening actions, ideas, or conversations … student volunteers put up posters advertising that a “safe space” would be available for anyone who found the debate too upsetting. — Judith Shulevitz Women, sexual assault victims, people of color, transgender students. College campuses have created “safe spaces” for all sorts of marginalized groups. — Catherine Rampell