Come on... I don't believe this. My whole extended family below 90 is using actively some varying portion of these: Viber (most used), WhatsApp, Facebook messenger. They are mostly spread in Turkey, Bulgaria and (to a lesser extend) the rest of Europe and some in the US. Grandmas use Viber regularly to share pics of their great-grandchildren with their first cousins (other grandmas). They send holiday wishes, news etc. And my people are not better educated compared to the rest of our part of the world. Everyone is very engaged with politics (mostly for or against Erdogan).

I don't believe Belarus is any different. Yeah, younger people are probably more likely to vote in such a thing, still, I don't think the bias is huge.

I’m from Eastern Europe myself. Yes older folks have accounts, but they aren’t active users. They wouldn’t join groups. They wouldn’t vote in the app. My parents in law are a testament to that. They too have all of those apps, yet they can’t even tell the difference between WhatsApp and Viber. We ask them to call us on WhatsApp and they’ll try to call on viber or Skype and then wonder why we are not answering and if there’s anything wrong with us :)

Maybe not the 85-90 year olds, but 65-70 year olds (my parents) are very politically active.