jumping in real quick to clarify...
Since she's on WIC, she doesn't have any control over what brand/type of formula... unless her pediatrician specifies for medical reasons. It's a government program that basically pays for the formula (and later, also cereal & juice). They do have trained nutrition counselors. FF babies (according to them) can start solids at 4 mo if they meet other criteria. BF babies, 6mos usually.
When we had our 4mo checkup, our ped assumed we'd already started solids. (We hadn't, wanting to get her okay, first.) I'm not condoning starting early, but I'm also not condemning it... we started at 4 mo, and that's what was right for us.