Im not able to blow the candles with my baby (growing to toddler). After I set the action "blow candles" they carry the baby and leave it on the floor, then nothing happens. After that if I hover the cake I have the hand cursor with no possible interaction.
When I have a baby (not toddler) and something happens, like dirty diaper or the baby is hungry, everyone in the household receives actions to satisfy the baby's needs although only one person is needed.