I can guarantee you we'd love to have them, and the one account for everything is great because they can pick what suits them best, Mastodon/Misskey/Pleroma (or their forks) or Wafrn for micro-blogging (like Twitter & Bluesky(Wafrn has a built in Blusky connection)), Friendica for blogging, Funkwhale for music, Peertube for videos or Loops for short videos (under 3 minutes) and Pixelfed for art or pictures, it doesn't matter which fits their content best, you can follow them no matter what they pick, and they should be able to follow you back (not sure how good some of those are for general social use).