Why do old folks walk up and ask…

Why do old folks walk up and ask if I’m gay? Do I have a quality I haven’t noticed?
It happened again today in the craft store. As I was deciding which shades of yarn I wanted an old lady behind me said something about “the yarn bug”. Anyway I told her I was making a hoodie scarf I saw on Pinterest and she asked if I spent much time online and I told her I build websites then without missing a beat she said “Are you a lesbian?”