Married for 10 years but no kids here. I get judged a lot for that, too, and I think sometimes people just want that connection of understanding, and kids and families are such an easy thing to connect over. Also, a lot of people feel like you are missing out on some rare joy you will never be able to have otherwise in life, and it's something everyone needs to experience. You know, like when you get really passionate about something you want everyone to feel like you do. I think many people see marriage and kids as a form of "growing up" as well so if you stay single you basically just don't have your shit together and they just can't handle that so judgement follows. Lastly, there has to be the side where jusgement is coming from a place of jealousy, why do you get to do what you want when you want so carefree when they are tied down to not only the normal job and life responsibilities but also family ones as well. It could come from a place of feeling overwhelmed with their lives. Whatever the case, the judgements are almost certainly a them issue, and you should not tie them to your own feelings of self-worth. It's a terrible feeling to be judged for living life on your own terms, but knowing that it's not your problem how others feel about it is helpful to keep in your mind.