I was just brewing with a buddy last night. His wife, and my girlfriend and another friend were having ladie's night and I knew he was going to be home with the kids, a boy and a girl, I think they're 5 and 3? Something like that.
Anyway I had taught him to do ag for Christmas. And figured last night, since our ladies were out, and he was stuck with the kids, it'd be great to hang out, try his first batch of beer, and brew.
The kids hung out most of the afternoon with us, alternating between riding bikes, and coming over to help "Daddy and Mr Mike" stir the wort (even if it didn't need to be stirred.)
And we ordered pizza and watched a kids movie with them while we were waiting for hop additions or the mash to be finished.
His Daughter, the older one, even drew me a picture.
His daughter evidently helps him bottle, drawing little pictures on the bottle caps for whatever beer he's brewing. (2 hearts for a two hearted ale clone, a shamrock for a Guinness Clone. )
I betcha dollars to doughnuts that his kids, WILL have fond memories of days like that where Daddy and his brewing friends hung out with them and they helped.
Probably much more than your neighbors kids will....
Ignore it.