I have a nephew who wanted to leave their toddler in our house for a few days. On impulse, I refused. Toddlers are the most difficult to handle when rearing a child. I'd say a baby is easier to care for since that baby is confined in the crib. But a toddler can easily harm himself because of his uncontrolled actions. I remember some of my nephews who regularly have bumps on their heads due to negligence of their parents, they would fall on the stairs or fall flat on the ground. When my daughter was a toddler, we had to spend for a nanny so she would be watched every minute. And the cost of the nanny is worth it because my daughter had passed the toddler stage with a few numbers on the scoreboard for bumps, cuts, bruises, etc.