I think I get it.

His options are he has all 3 and takes them all to practice, which many people do.

-or-

He has all 3 and gets a someone to be with the younger 2 if he feels he can't handle all 3 at practice.

Is this the picture?

Me 57/H 58
M36 S 2.5yrs R 12/13

Let me give up the need to know why things happen as they do.
I will never know and constant wondering is constant suffering.
Caroline Myss