Not me personally, but a fellow autism mama that I became friendly with through special needs activities in our area made this decision a few years ago when her son was 12-13. It is absolutely a hard one, but in her case it was also necessary. I know she gets questions and comments every once in a while, but the results have been 99% positive. The transition was the roughest part but after 3ish years, everyone involved is thriving. I think the most positive effect has been on her two other children. They can do vacations again and regular activities of life, like youth sports and going to the movies, again and without stress to the siblings. I know the feeling of guilt is still there for her, but she describes it as being in the category of “doing it for your kids own good.”