Its complicated. It hurt my confidence a lot to hear things during childhood like “I can’t understand half of what you say” “I need a break from your voice” or just laughter at my talking. It hurt my feelings deeply, it didn’t stop me from talking a lot though but thats part of my personality. It never really held me back from trying new things but it certainly affected my sense of self worth. In the specific case of asking women out, many teens who don’t stutter are even terrified of that.