I don't quite understand the question either, unless you have straight PTO and no dedicated sick leave.
When my kids were little we had no telework, so I had to use sick leave every time they were running a fever or recovering and couldn't go to daycare. Probably that was 5-10 days per kid, per year. I was lucky enough to be able to split that with my husband and my mom who helped out a ton.
I also had to use sick time to take kids to the doctor and dentist, which can be several visits per year. My kids were overall very healthy, but they both got a few colds per year, HFM, etc. The worst is when you would take sick leave for the kid and then have to take sick leave for yourself a few days later because you caught the same cold.