Daddit - Parenting for Dads
I noticed that when one of us spends more time with the kids than the other, they tend to want the other parent more.
When I'm alone with the kids they ask for mom, and vice-versa. When I pick them up from daycare, the oldest wants her mom to get her out of the car instead of me, and vice-versa.
Switching off seems to have worked somehow. They don't really gravitate towards one of us when we're all together, it's really only when only one parent is with them.
If I'm (dad) already there and they ask for mommy, then I try to soothe them by saying I'm there for them. If they're still upset and insist to have mommy then we swap. I don't see it as a big deal that needs to be addressed (unless I'm in a non-negotiable situation such as having to rake them to school myself).