Yes, generally. Especially if those randos are, for instance, me. RCS needs server coordination, and I don't want to use it if I can't bring that on-prem.

Ironically but unsurprisingly, Google Voice doesn't even support RCS.

Been a user since 2009ish, Google Voice also still exists because Google doesn't really fully run it (Bandwidth.com does).

I really do think it was living on life support for years and around 2014[1] or so it really seemed like any day it would get shut down or merged into one of their halfassed messaging apps but they couldn't do it since the underlying infra was outside their own. It seemed like at some point around 2018 a manager woke up and decided they'd have the interface rewritten 80% and the legacy interface stuck around like the old Windows 'add font' menu until earlier this year.

[1] https://9to5google.com/2014/03/18/google-plans-kill-google-v...