Bub may not be able to travel to mums work for a feed (eg the family might only have one car, mum may not know the exact time she is able to break each day, a 1 hour return trip each day ... Really? Having bub stuck in a car for that long is a good idea?).
Expressing doesn't work for everyone. Some women can't pump
Much at all. Others (like me) take ages to pump enough for one bottle. It's not time effective.
Soooo... A 6 month old... 8 month old etc who is on solids can go a whole 8-10 hours without a milk feed? Really?
I get the point you're making but I think it's a little naive/idealistic to assume just because you *think* you could do it someone else could.
If the woman wants to stay home for the first year or beyond then good on her. It's not some point scoring match where everything has to be split with the opposite sex 50-50. Sometimes a little inequality is a natural part of life. And something women (and men) want.