lol, only on getbig can something negative be found from something so beautiful 
Calm down. First of all the picture caption says he does marathons. Full length marathon would absolutely be torture to a kid because it would take at least 15-20 hours with the extra weight. So I googled this. Turns out the guy does 1/8 marathons with her. Ok, that's much better - but no one knows if the kid really enjoys it, she has a metal capacity of a 3 month old and she does not talk.
If she enjoys it - great - if not, too bad the dad needs an event and people cheering to spent "quality time" with his daughter.