With the lesser availability of baby formula (junk food, poor nourishment), probably a lot of mothers are scrambling to find something else. First, I had forgotten but mothers CAN restart or start their own milk supply. Look for restarting breastfeeding, inducing lactation, re-lactation on youtube.
Secondly, ThePatriotNurse has an excellent video on this subject found here, sorry for the youtube link, couldn’t find another.
Third, one of my go-to sites for stellar nutritional information-- (www.westonaprice.org)--recommends two books that are FREE and downloadable, The Nourishing Traditions Book of Baby and Child Care and Nourishing Traditions. They can be found here and here.
That's great information. I've heard of mothers nursing up to 3 years old.
I've heard that as well. Yes, we are fortunate to have access to it.