A holographic Tom and B'Elanna who shuffle seamlessly into the babies perception of normal life?
First that's cheating, and second that's stealing a childhood from the kid.
Why bother with holograms.
Put the baby into a maturation chamber and sleep teach the tyke in a Unimatrix/artificial environment, until it's old enough to do simple chores.
Do you feel like an asshole when you think of all the time you just put your children in front of the TV and prayed that they would stay there?
Baby sitter, maybe.
Primary care, no way.