At this point in time, let them see what it's like and if they join, great. If not, no biggie. The fediverse is not depending on user growth like any of the corporate platforms. And it is hindered by people having to learn to be their own algorithm.

Yes, it would be nicer to increase the ranks in certain Lemmies or on Mastodon. But I haven't felt it's tumbleweeds in any of my feeds lately - this may be very subjective. And I feel reddit or the Melon are doing a lot of the convincing for us at the same time.