Confused?

So, I am on WIC and also have a regular pediatrician that we see.

At our appointment the 30th of September our ped told us not to give LO any liquid other than milk. We can start introducing him to solids or give him juice if he's constipated but that's it.

At our WIC appointment today they told us we should start giving him juice and water to lesson his formula and milk intake.

This is so contradictory. We are going to follow our peds advice for at least a little while longer (LO is only 4 months,) but why would they have such different advice?