Grandpa Jason and Grandpa Chad
Alt-Text (der eigentliche Witz)
The AARP puts the average age of a first-time grandparent close to 50, and the CDC has some data. But I don't have first-parent age distributions for specific names, or generational first-child age correlations, so the dotted line is just a guess. Still, let's be honest: No further research is really *needed.*