you would find out at church or any number of the 3rd places you shared.
Yes, that may have been better, but that doesn't mean deleting social media automatically sends you back in time. Doubly so if all of your friends are still on social media and using it as the primary form of communication.
Imagine deleting your email and telephone in 1999 and saying "if they were really my friend, they would drive/fly to my house and talk to me".
In 1999 we had obits and mail, just like in 1899. Of course now all of the newspapers are gone (what’s black and white and dead all over?), so notifying the local community is much harder than 25 years ago.
Also some people back then would brag about not having a TV, the same way vegans still do today.