I remember grabbing an identity button at a recent fundraiser for Planned Parenthood. That night I think I talked about 10 others into wearing them after emphasizing the importance of helping to normalize proper pronoun use.
Like gRegor said so well:
This removes any ambiguity and helps normalize the practice of sharing our pronouns. Not everyone uses pronouns that match the gender they present as and some people use non-gendered pronouns. If only those people shared their pronouns, it would make them feel “other.”