I've never strapped, and the thought has never been one to make its way into my mind. There is no "ew" factor in the least, but it is never something I thought about.
My first girlfriend and I never used any toys - honestly, I am not sure I even KNEW about them at that age. Same went for my second girlfriend. It actually wasn't until I dated my last boyfriend that I even OWNED any toys. So, I came out fully, met a girl, and she actually shamed me for liking penetration period. We're just talking basic, slim, not-cock-realistic $10 vibrator here. I was informed that I was NOT a lesbian if I liked penetration. Well, okie-dokie, toys went into the trash and we parted ways. After that, I have only been partnered with stone partners (I feel the need to comment that it's just happened that way, it's not like I told myself "Okay, no more giving sex, just taking it!")
So, I have only been on the receiving ends of strap-on's. Sometimes it's the last thing I want, sometimes it's the one thing I want (and a lot of dirty words and hair-pulling, but I regress..). If my partner ever requested it, it is something I would be more than willing to try. In the mean time, it will just be one of those area's I've not yet explored, but by no means would I ever shame or make anyone feel lesser.
I personally would not cross someone off my list for strapping/NOT strapping/wanting ME to strap.
Just my .02