Spot on! I am a retired pediatrician, parent and now grandparent. The infant phase can be further stratified into ped rock phase and interesting but boring phase. Both require nearly constant attention and the biggest bike-time suck worsened by lack of parental sleep. I did not really get back to cycling until my kids were in there teens. They, of course, did not want to come along with me. Congratulations on those who have continued to hit the road for pleasure as parents.