I’m an adult kid (can i still count as that?!?!). I nudge my other half to call his mother every weekend. I’m sure she knows it’s me doing it.
I text with my mom a few times a week, and I see my parents every few weeks in person. She lives about a half an hour away. I usually only text or call my dad when I need his help with something - he’s not much for using his phone unlike my mother. 