Calendar for Servers

A calendar would be AWESOME to have for small groupchat servers and large game servers. Putting in birthdays or stream events or game nights... Users could put in their own birthday, while mods/admins could put in other events. Users could RSVP via reaction or some other feature so they'd get an alert about the event. It would also be helpful for NSFW channel moderation-- if people's birthdays are in the server automatically, then they wouldn't be able to just click to enter an NSFW channel. Plus, for people who aren't very good at server setup, it would mean no more need to make special roles/permissions to hide NSFW channels. I think a calendar would be very cool and helpful :3 And maybe people would actually show up to D&D night on time.