If you're under 5'3" you're closer to me! Shorties unite!Flats it is. They're more expensive than the other two pairs, go figure.
My best friend got married last summer. She's like you, I've never seen her wear heels and I've known her since we were 18. She's 6'1" so I thought I'd look normal next to her in the photos wearing 5" heels no luck lol. I had to stand on the photographers case for the group pics and I looked like a little kid standing next to her while she was wearing flats. I'll see if I can find the pic it made me laugh.
It is probably because you are scary. I can imagine your lecture when anyone tried to tell you what to do...I've always worn high quality sneakers because I did not want a bunionectomy later in life. So I always carried heels matching my outfit and would switch for the minimum time necessary to be fully 'dressed'. It was the rare occasion I had to wear them all day.
I guess it paid off I have zero hallux valgus.
Funny, people rarely commented on my deviation from dress standards.