Nijaki
Greenhorn
My mom and I both have separate save files on my unmodded Steam version of the game, updated to 1.5.2. I am on year 4 and have two toddler aged kids, both of whom come with my husband (Sebastian) to all of the various festivals and events. My mom's file is on year 14, and her two toddler kids have yet to show up to any events with her husband (Elliott). As far as I'm aware, I didn't adjust any kind of setting or anything, mine just started showing up at the festivals, so I'm not sure why they don't for her.