Well I’m not into lactation but my dad definitely is. So it’s not from my dad’s side. Not sure what my mom’s fetishes are though so maybe my kinks are passed down from my moms side.
Looking forward to finding out that kinks are governed by mitochondrial DNA.
Could have some sort of medical condition. My dad could probably manage a smartphone except he has MS which makes using a touchscreen or small buttons very difficult. I could see any sort of nerve damage to the hands doing the same.