I'm glad you aren't finding it hard. I can't even get people to move from Whatsapp and Messenger over to Signal. Only computer geeks seem to care or bother, so that's who is on my Signal list.
For anyone else (i.e. the majority, which already has 2-5-10 messaging services on their device depending on how you count), quicksy.im does a decent job at emulating the onboarding experience of phone-based social graphs (WhatsApp & al.) and substantially lowers the barrier to being reachable over XMPP.