I
think the biggest issue here is both how you think others will perceive you and how you preceive the relationship from a social acceptability perspective. Mostly you are wondering about the approval of your friends and family.
News flash
Some of them will like your SO and some will not no matter what lol.
A relationship will either work or not work depending on an enormous amount of factors. We are talking relationship psychology here, and psychology is great at explaining after the fact, but bad at predicting what will happen.
In fact most of the time its rationalization. I doubt many of us really know why or our relationships work or don't in a way that could be clearly expressed.