Is it true that most brothers with sisters make great boyfriends/husbands?

I say that it couldn't hurt, but I have also seen many with sisters that don't and aren't. I never had a sister and my wife loves how I turned out and the job I'm doing at it (of course she is the only one who really ever made the effort and gave me the chance to show my true self, and appreciated what I had to offer her). I learned to respect women from an early age by just observing how other men treated their girlfriends/wives both good and bad. I also did a lot of self-education on relationship issues, etiquette, etc. and also listening carefully/paying attention to what women were thinking, saying, and feeling. I just began knowing what I wanted, what I was looking for, how I wanted to be as a boyfriend/husband, and what I wanted in a relationship and the kind of marriage I did/didn't want. I was just always determined that IF and WHEN I ever found love with a woman who loved, accepted, trusted, and believed in me enough to want to share herself and her life with me...I would in the very least make sure she never regretted that choice because she would deserve it.😉👌