Unless your mom is planning to involve herself in illegal activities I don't see a problem. Most electronic communication channels are compromised anyway. If you don't want eavesdroppers, don't use electronics.
I assume you'd be happy to post all your credit card receipts and emails for all of us to see then. You're not doing anything illegal, right? That would be the only reason you don't want those things to be visible.
It's a bad attitude to have because allowing the government to have that power at all is a problem, even for terrorists and murderers and pedophiles. Because we don't know if people are those things until we investigate them, which means the government gets broad powers to investigate people to look for those kinds of crimes, and maybe find other people they want to get for other reasons.
I used to investigate computer crime. Yeah, my job would have been a lot easier if I had unlimited access to anyone's email. But instead I had to investigate and build a case without privileged access. It was harder, but I was glad that the system couldn't be abused.
Why should governments or law enforcement have privileged access?
Who'll protect you when they come knocking on your door to talk about that thing you posted about somewhere online, which used to be quite legal and no problem, but now is super illegal for some oppressive reason or another?
First they came for the socialists, and I did not speak out—
Because I was not a socialist.
Then they came for the trade unionists, and I did not speak out—
Because I was not a trade unionist.
Then they came for the Jews, and I did not speak out—
Because I was not a Jew.
Then they came for me—and there was no one left to speak for me.That should be a much better analogy. Especially in the postmodern hypersensitive world.
My point was that there is no uncompromised electronical communications platform. If you wish to communicate using anything having room for a man in the middle attack, it is very hard to proof that the medium is NOT compromised by a nation state or another third party.
You can communicate fairly securely without the messaging being intercepted by black hat non-nationstate third parties. I don't think anyone can guarantee security against nation states.
So if you want to communicate, you either communicate, or you don't, but requiring a 100% tamperproof platform is really hard.
For example, Echelon system probably had/has intercept capability for all phone traffic in europe: https://en.wikipedia.org/wiki/ECHELON
These systems were in place in 1960:s. AFter that modern telecoms substrate was developed in close collaboration with nation state defence parties. As a non-expert, there is no reason to think any platform is secure from nation state eavesdropping.
I suppose the definition of illegal activity is also fixed and social norms will not change over time?