People are lazy and use what they are accustomed to. As long as it doesn't affect them that much, they wont change.

The best example is WhatsApp in that regard. I don't know how many of your friends & family still use this, but it's astonishing in bubble at least and their policies have a drastically bigger impact for the individual user than any changes on Reddit users.

The problem I see on lemmy in particular is that there are only a few users yet. If this gets better, the casual user will join too. (Network Effect)