We were in a somewhat similar situation last year with our 3.5 yo daughter. I deferred to experience and asked my pastor to discuss it with her. I was doing good to understand paedo-baptism from my (the parent's) perspective, I struggled with how to explain it to her properly.
The way it worked out, I think it was the best thing I could have done.
Shepherding Elder - Bradenton CRCNA - Bradenton, Florida
(A conservative member in a moderate congregation)
"Turning away to false Theology is equal to turning away to false gods" — Francis Schaeffer (Death in the City)