You're right. I had to laugh for a long time when I read that the only joy for the elderly in Russia is Facebook and Twitter. What can be in a person's head when he had this thought?
I just want to say that there are many sites and social networks where people in Russia can communicate among themselves. Moreover, someone is worried about WhatsApp turning off, but again, the relatives of Russian people living abroad are not stupid people. They will easily switch to social networks that are available in Russia.
The whole problem is not worth the trouble.
The Russian government blocking Facebook and other social media is not a very important thing to worry about. This is not a basic human need that if they do not play social media then they will die. So whatever it is and whatever the reason, this is only a little disturbing for the user's comfort but psychologically they will immediately switch to applications that are still allowed. Humans have a basic nature that is easy to change according to their needs and desires. Moreover, this condition is a retaliation for the prohibition measures taken by Europe and the US on Russia.
I agree that banning some social networks will not have any effect on anyone's economy, there are always some alternatives! Maybe on an individual level, this situation affects some people, some people have been making money on some platforms and now they will not be able to do it, but they will also manage to find alternatives somehow!
However, we are talking about social networks, we can live without them! And at the moment because of the strong propaganda on both sides, and that isn't very interesting, too many lies and deceptions, so it's better to move away from them for mental health if nothing else!