Everybody does it different, my health nurse told me to wean dd at one and more to formula, she said most purple do that, but meh, dd and I will wean w when we think the time is right.
In this case its 14 months, and well done for getting that far.
Not everyone is going to think its cool, I don't think that its sexuallising breast feeding completely, depends which way you look at it.
This is what my husband says to me
Breast feeding a baby - normal I don't get off on that, I don't see anything sexual about it. But when you stand naked in front of me, I want to caress you, squeeze your bum, suck your boobs, touching you in every way possible.

So just because she breast feeds d does not mean her husband has to stay away from them. And if they are making milk, well that just makes it more interesting.
But I totally see the other pov, this is just another way to look at it.