Instagram 1 is for family and friends. It's snapshots of daily life for family and friends all over the world.
Instagram 2 is for others that like me enjoy making radio-controlled replica cars and trucks from flat sheets of styrene.
Facebook is to let people who know me find me.
Why would one NOT have a reason for social media? Anything as mundane as keeping up with distant friends and family is reason enough, no? And of course that's going to forever remain mimetic unless you're a business. That's why there's the word "social" in social media, or did I miss the boat?
TikTok for entertainment. Twitter to be heard... I can't believe one would have any kind of social media account without a purpose. Even if it's showing off your wealth, or pretending to be something you're not - they're all reasons, no?