When I advertise and have to select an age I generally put 8-9 months with the idea of adding a child nearing a year old which is where parents are normally looking. I have had a child as young as 3 months come into care because the mom found out she was pregnant again but had to be back at work for a minimum of 6 months to qualify for maternity leave and benefits again. It wasn't a problem but certainly not something I would recommend for anyone that hasn't had to juggle their own baby while older kids of their own and learned that fine line of meeting everyone's needs. I would prefer to have any baby fulltime so there is less friction between ways of doing things. The advantage of a baby is the younger they come into care the faster they tend to develop. That is something I really noticed with the move to the one year maternity leave was how developmentally delayed children coming into care were compared to their previous counterparts that started care at 4-6 months. It seems in a way that it gets worse with each new group I start. Mainly talking here about moving to table food, off bottle, on sippy cup, walking, talking, playing and entertaining themselves with constructive play, potty training, that sort of thing.