We've been at this a very long time and we have gotten very few negative responses. What works for us is to not define it by the downsides of school, but on what we are happy about in our lives. I find if I'm super cheerful in my response "Every kid is different of course, but I feel so lucky to have found something that works so well for our family and there is such a nice homeschooling community here now so we are super busy..." People got to be pretty much looking for a fight to be negative when you are being so chipper about it.
