Running with babies

So tonight I had to run with the kids. This is always an interesting activity. First, let's do the math. Jogging stroller= 30lbs, Cam= 33lbs, Cal= 24lbs, so I am pushing an additional 80lbs during my run. Needless to say, I did great to run for 30 minutes. At the end, Cam always wants to run with me. I let him run home and he just loves it. I just bought him "running shoes" per his request. Am I raising a future running buddy...I think so...