You can educate them if they ask but otherwise you can’t force them because most people are very resistant to this type of thing.
Your best option is to stop using FB messenger yourself and tell them they can reach you on Signal. If they’re really your friends, I’d like to imagine they’d follow you over. If your friend group switches, more people are sure to follow which will help speed along mass adoption and normalization via word of mouth to other friends and family.
You can educate them if they ask but otherwise you can’t force them because most people are very resistant to this type of thing.
Your best option is to stop using FB messenger yourself and tell them they can reach you on Signal. If they’re really your friends, I’d like to imagine they’d follow you over. If your friend group switches, more people are sure to follow which will help speed along mass adoption and normalization via word of mouth to other friends and family.