Very Interesting observation indeed...
I grew up in a family that shows almost no love or affection, at least I've never seen it in my conscious life. My parents divorced when I was like 5, so I don't remember ever seeing my mother or father hug or kiss a single time, and my mom didn't bring boyfriends around me often and if she did she was never affectionate to them. So when my parents split, my mom and I went to my grandparents, who I've also never seen kiss, hug, hold hands, say I love you, or show that they even really like each other much if I really boil it down.. They always showed affection through material possessions. Which was cool at the time, I felt like a pretty lucky kid at times, I was an only child and only maternal grandchild so I was spoiled with possessions, went snowboarding all around the united states + BC. But fuck man... I would have much rather had an emotionally connected, loving family and grown up poor. Definitely fucked me up a lil bit and it took me a while to realize it's impact on my relationships and even friendships etc.. one of the most disappointing things in the world is having to come to the realization that your family is too stuck in their own way to try and do anything to fix it. I had to pretty much learn normal human interaction through my friends or randoms. Don't get me wrong, they're not bad people for the most part. My dad definitely has some pretty severe anger issues but we thankfully haven't gotten physical (in his younger days we'd have gone at it for sure.) My mom almost certainly is undiagnosed Borderline Personality disorder as well as highly anxious and ADHD, Some of the things my mother has said and done to manipulate and punish me would make the wrong type of person crash out and go to prison. She has told me to hurry up and **** myself already countless times (mind you i've had like a collective 2-3 years in active opiate addiction spread out over the course of the last 10) Grandmother is one of the most generous and caring people in the world with an amazing heart, honestly if it wasn't for her I'd probably be dead somewhere by now. My grandfather is also a very respectable man, he's old school though, he's not confrontational at all and keeps his opinion to himself unless its asked for.
I am sort of curious what your upbringing was like if you care to share more here or through DM.
I'll show you mine if you show me yours! *ba dum tss.*
Psychedelics actually sort of helped me download the love and affection software update.