surely so long as everyone can feed their baby how they want to then everyone is happy? I cant see why if someone chooses (for whatever reason) to formula feed their baby it has any effect on a breast fed baby (and vica versa) its not like the formula is going to jump into your babies mouth or like a breast feeding mum is going to come and try to feed your baby.
But see, this is where it starts to get very complicated.
Not BF a child that could be BF can, arguably, have a negative effect on my child. Similar to the way a parent who chooses to not vaccinate their child has a negative effect on my child.
FF babies are more likely to be sick. Sick bugs spread. The more FF babies there are, the more sick bugs there are to spread around and the more likely my baby will come in contact with one.
FF babies are more likely to suffer health complications later in life (obesity, diabetes, even cancer.) Taxpayers foot the bill for many of those expensive illnesses (in the US taxpayers AND healthy people foot the bill in a more complicated system.) So, my children will someday being paying for the illnesses of those FF babies who have grown up to have health conditions that
might have been prevented or diminished if they had been BF.
Of course, these are very hard arguments to quantify. But that doesn't mean they don't exist. The same way the vaccination argument exists. Vaccinations don't prevent disease 100%, usually at about 98%. My kids are vaccinated, but diseases are on the increase due to so many not getting vaccinated. So, now my kids are more likely to get sick, even though they are vaccinated. Same with BF. BF helps minimize sickness, but not prevent it. Sending my kids to a daycare full of FF babies has exposed them to more illness than I can even quantify -- and they have gotten sick much more often because of it.
So, there is an argument to be made that increasing BF rates in general would benefit EVERYONE -- the society as a whole.
These are the reasons that I get a bit more frustrated when parents choose to FF out of convienence or lack of education or some similar reason. They may believe they have made things easier on themselves, but they've made things harder on both their kids and mine.