Just wondering why babies after 6 months cannot have cow milk?

[trinity2]

If a 8 month old is eating a well balanced diet and they can cow milk in breakfast cereal and cooking, why can't they have cow milks to drink? It is just a wondering as I was talking to my mother and she was staying that when I was young babies only had formula until they were 6 months old and she asked me why it had changed as we all grow up OK! and I didn't really know. DO people reckon it is mainly due to the formula mancfactueres puttng pressure on or what? What damage could cows milk do?

Thank you

This is really interesting as I would of thought that there would be people with these conditions if this was the case. I mean does this mean if a baby was breastfeed or had formula up to 12 months then in theory they shouldn't get this? You see my daughter was breastfeed up to 12 months and she has ezcema my son was formula feed and he doesn't ave ezema according to the socalled experts and research this should be the other way round.
This is way I wondering how reliable is the experts advice and research?