No problem!
We did the same thing, wrote out a small, basic set of guidelines outlining why we didnt want anything on social media or big tech clouds among a few other things.
Most family downloaded signal straight away which was a bonus to be able to possibly fuck off messenger in the future.
As long as you make it as easy as possible (within reason, dont bend over backwards if someone doesnt want to comply for no good reason) for others within your boundaries then it will end up being mostly painless.
Also congratz on becoming soon to be new parents! Sleep as much as possible now! Haha… Aha… Ha…
They dont “cooperate with governments”, they follow the laws they legally have to. All the cases I can think of where they gave info to a government with a legal order to do so, they gave information that has to be logged in order for the system to work and the subjects themselves used poor opsec eg: their real names for accounts and recovery emails…
Some privacy extremists have unrealistic expectations when they sign up to these things without fully understanding how it works and then blame the provider for something they were completely transparent about from the beginning.