Well I wouldn’t cuddle with a friend either, I’ll get emotionally attached and awkward around them. Especially since our private parts, especially the breasts will be likely touching to others parts usually through clothes, I just can’t view cuddling as anything but for a non sexual, high intimacy thing with an SO.
I mean I imagine I’d only do it at random moments when we’re home alone, sleeping (💤 type) together, and yes after sex too if I hypothetically had a long term SO, I was comfortable getting physical with (not just sexual physical contact either, I am very slow, unironically even hand holding takes time for me 😭).