I definitely found when I had 2 one year olds, that I was much busier. One walked and one didn't so the non-walker was mostly in the stroller. It was hard getting all the kids out safely. Around this time one of my moms decided to pull out her 3 year old and put him in group daycare but she was also a difficult client to begin with. You will definitely need to change diapers more often. Having said all the negatives there is a greater demand for this age group and you can set the rate higher (at least that's how it worked for me!)