I breastfed both mine for over a year, but I certainly wasn't motivated to continue because of any physical rush of dopamine. It was bloody tough. Firstly, I have a weird condition where my areola expands to cover most of the breast, then no matter how much time I spend trying to soften my nipples weeks beforehand, they become rock hard and are HUGE.
I get bleeding cracked nipples and I always end up crying from the pain and wearing pads pretty much from the first week. I dread the baby initially latching because it hurts so much. It's a mental wall to get over each time in the first few weeks.
It takes a good couple months before my nipples callous enough to stop hurting and cracking, then because my areolas are so dark I get two tone nipples
Of course after not feeding for hours there's a sense of relief when I finally feed because my breasts are swollen, but there's nothing remotely sexually or even tittilating about it for me anyway, and judging by the numbers of women reporting similar hurdles and giving up, I'd say that was pretty common.
My motivation for going through all that?
Not bonding. I co-slept, that was enough.
Not convenience.
No, it was me wanting to do what I saw as best for my children in their earliest stages of life. Now....had I been ill and on a cocktail of heavy impact drugs...I might have weighed up if it was better for my baby (regardless of my emotions) to be bottle-fed.
This here, is pure self-indulgence and nothing to do with the child's well-being at all. Such considerations have not come into their minds. This person imagines simulating an 'womanly' experience to be equal to that which women actually experience, well no, it clearly doesn't in any way.