No. I'm 33, childfree by choice but have a boyfriend at the moment (he doesn't want kids either), before that I was single save for a few short flings for about a decade. I've never felt less than or judged because of it. I can count on one hand the amount of people who've asked me why I don't want kids/said I'll change my mind/couldn't wrap their heads around it – and it was all men!
The only people who've ever questioned my reproductive choices were men I went on dates with, and needless to say, I didn't see them again. The only time a woman has ever questioned or probed is a colleague who said she felt like me (vehemently didn't want kids) until she was 35, then much to her surprise changed her mind, but that wasn't even really questioning or saying the same would happen for me, she was just adding her own anecdote.
Maybe people have judged me but I'm oblivious. I decided to stop caring what people thought of me in my 20s which apparently is sooner than a lot of people learn to do that. It helps that most of my friends are single, childfree women, and even if/when some of them have got a partner it hasn't changed the friendship, we all still make an effort to hang out without our partners.
I also find the 'omg you're so brave living life on your own terms' thing weird. It wasn't an active choice. I just knew on a very fundamental, visceral level since I was a child that I didn't want kids, so I'm not sure why following my instincts is considered brave. I'd tell people on the first date that I didn't want kids, because if they did, it wasn't worth dating. Going down a path that led to motherhood would have felt like forcing myself to go against everything I knew about myself and I can't imagine a world in which I'd have done that, so I don't really see my childfree-ness as a choice, more just an unchangeable instinct within me.