Strong fascination with old/older women

I’m an adult who is sexually fascinated by 50+ old women. Ever since I was a 10-year-old boy, I’d fantasise about women old enough to be my grandmother. The feeling hasn’t left me however, it even has gotten more intense by the years. Mind you, I’m not interested in having a serious, long-lasting relationship with a woman 30 to 40 years older than myself! It’s purely carnal and sexual.

I’m guessing it has mainly to do with my first-ever sexual arousal at the age of 10, when I saw a 60-something years old, half-naked family member of ours. The feeling was so intense that it might have traumatised me, causing me to take a special liking of much older women. I’m not completely sure about this, but it is a very strong evidence.
If you’d ask what qualities of an old woman captivates me so, I’d say warmth, kindliness, body-shape, chubbiness and their way of acting and thinking.

So tell me if you share the same fascination with women older than yourself, and what you think caused this in you.