On a side note
My wife is the youngest of 4
Her oldest sister is 12 years older then her and so when me and the wife were dating her sister allready had kids
I think they were around 6 and 8 when we took em to the local chinese buffet and I taught them how to shoot jello at each other with straws
Took em almost a decade, but a few years ago we were at the same buffet and I caught them teaching my kids the same thing