Really awesome that you breast feed that long!
I do know that it can be quite difficult to do so. Since my wife when continued until 3 years. One of the big advantages is that you always have food for the baby. And no time needed to prepare it.
But there are quite some people that think all kind of negative things about it. One of our former friends was against seeing breast, so he did not allow to breast feed baby's on his party. My wife really needed to go into the bathroom and sit on the toilet 😩😳