[tssva]

I don't switch to Signal, Whatsapp, Telegram, Facebook Messenger, Discord, etc. because I have several different friend groups, family groups and people which belong to none of these groups I message with. Occasionally someone from one of the groups will try to get people to switch but the problem is none of them choose the same messaging app, so changing now puts people in the position of having to use multiple different messaging apps and remembering which they need to use for each person. It is a lot easier to stick to the common ground everyone has which in the US is your pre-installed messaging app. On the iPhone this allows you to reach everyone via either Apple's proprietary service or SMS. On Android this allows you to reach everyone via SMS or RCS. When you ask your friends to switch messaging apps you are asking them to do something which complicates their use of messaging but appears to provide no relevant benefits to them.