No two year olds shouldn’t need to nurse.
Babies handle most foods by the time they are one.
However I could see these bottles used as a type of sippy cup or what have you for a while.
Give a newborn cow milk and they will usually be in great distress and probably eventually die through diarrhea and malnutritin. They can’t digest it properly if at all.
If I knew that I had forgotten; it does seem to strike a distant bell. I fathered two children, but they are now middle aged. :^|