It was a real “we should encrypt all our drives” moment.
I would say think twice whether you really need it. Encryption is another technological layer that can fail, so it is double edged sword and encrypting something “just to be on the safe side” might not be the best thing to do.
Don’t give people your phone number. Afaik signal now works without it.
As a downside, you may find you are not as important for these other people as you think, people are under no obligation to accept you forcing your quirks on them.