So my 10 month old doesnt drink regular formula,he drinks Soy formula. when its time to take him off of formula,should i keep him on soy or switch him to dairy milk?

The lady at WIC said i could either come back early September to get more vouchers for milk or i could wait until his birthday to get the wic changed to whole milk.

Idk what to do because we dont drink whole milk,too fatty and greasy.