I see so many posts on different topics across MN where people complain that other posters are making them feel guilty about their lifestyle and parenting choices (anything to do with environmental issues, ethical shopping, WOHMs/SAHMs, FF / BF, routine vs child-centred parenting etc.. etc..).
It often comes across to me as a bit daft and/or precious. It also tends to close down the debate e.g. "ooh, we can't discuss the pros and cons of [xxxxx] because hearing any opposing viewpoint will make me feel guilty..."
If you think it's the right thing for you and your family then don't feel guilty. Have more confidence in your ability to make the right decisions.
If you do feel guilty, then you evidently feel that you're doing something wrong. You should therefore think about making a change to either what you're doing or your own attitude to it.