you could just delete your accounts. i find that my family and friends still seek out connection and interactions with me, as i do them, even without some sort of computational facilitator like instagram.
Easy Asian countries still appear to be heavy FB users even among Millennials. Most of my family is there so it is how I keep tabs on them.
Don’t be surprised if your family gets radicalized with some idea they were against just a generation ago. Facebook and social media is so many bad things at the same time: propaganda, surveilance, consumerism, deception, addiction, and complete isolation from one another. I find social media responsible for a lot of modern ills in our society.
Net neutrality is not a thing there and telcos usually offer free GBs of FB/TikTok access.