Tor was created by the Naval Research Labs, and was released to the public because it is secure.
The problem is that if it’s only the CIA or DIA using it, it’s easy figure out who is using it and where. Make it global and now there is a lot of noise to separate out.
My father in law was a commercial pilot and he had a home server just to keep photos and travel writing while he was flying and away from home a lot. I helped him upgrade some of that to the cloud, since that makes for sense when on the other side of the country, but he still has a bunch of stuff at home.