I fixed my aunt's slow computer for free last week
Most techs insist you should always charge for any repair, even for family. But her computer just needed a malware scan and some temp files cleared. It took twenty minutes, and she made me a pie. I think small favors like this keep things friendly.
Yeah, the part about keeping things friendly is key. My grandma used to watch me after school, so helping her with her iPad feels like nothing. She gets to see her grandkids on video calls, and I get to repay a tiny bit of that care. If I charged her, it would feel wrong. It's not always a business transaction. Sometimes it's just being part of a family where people help each other out.