The trade-off here is a social connections versus privacy/integrity.
I can make the decision to use Signal or whatever, but as long as my whole social circle does not do the same, it wont be useful. And since when they do the swap, they have to convince their whole social circle to do the same, this becomes an impossible task. Either you have 10 different apps for different friends that lie on different places on the ethics of privacy, or you just take the easy way out and use what everyone uses.
I can make the decision to use Signal or whatever, but as long as my whole social circle does not do the same, it wont be useful. And since when they do the swap, they have to convince their whole social circle to do the same, this becomes an impossible task. Either you have 10 different apps for different friends that lie on different places on the ethics of privacy, or you just take the easy way out and use what everyone uses.