Ha! Just did a bit of scouting about, on the assumption that there must be a fair amount of research on child feeding/weaning in the middle ages. Turns out so far that they may have got it Very Wrong... Can't copy the thing, but a bioarchaeology study says that they weaned onto "pap" - flour and bread cooked in water (which is making me queasy) and panada - flour or cereal in a broth with butter or milk. So much like puree in texture. She suggests that the high cereal content of the pap prob interfered with zinc absorption, and that medieval writers associated weaning with disease such as rickets, gastrointestinal disease and growth retardation. Mean weaning age before 17th and 18th centuries was 18 months, however, so it's kind of moot; I don't think most of us wd think that a child with no eating problems should be eating the equivalent of pap at 18mo.
Fascinating as all this is, I don't really think it aids discussion about modern weaning practice; I would not have wanted to be around in the middle ages, tbh. I've seen enough of how their medicine worked.
fwiw, though, the women reading thing isn't so simple. Private reading is a relatively modern phenomenon, and in the earlier middle ages writing was more of a menial skill - one dictated to a secretary (amanuensis) rather than using your own hands. In the later middle ages many middle class women would have had some reading skills in the vernacular, but access to literacy didn't mean having to read yourself, iyswim - if a household or a village had books, people would receive the information orally, so women would have had access to written literature, even if they couldn't read it themselves.
Not a medieval historian per se, but i was a medievalist who specialised in vernacular literacy (from the language side) hence the pointless digression.