My first snip wasn't to make me circumcised, I was very much against it. It was to give me a "normal" foreskin as per the standards of the day (one whcih self retracted upon erection and left tip f head exposed when soft.
Evetually accepted I was no longer uncu and had become circumcised (as when hard, I had 100% cut look even though skin could still be pulled up). Seeing cut guys put on underwear was very hot for me, imagining the sensation of glans coming into contact with cotton, and the outline of bare glans against underwear.
Took many many years of back and forth (not wanting to lose my skin movement for j/o and fear of losing sensitivity. Then one day, riding bike to supermarket in looser underwear, I had exposded glans and it felt really nice , comfortable and didn't cause instant erection. Still took a year to decide but the desire to have the look fo a full circ and feel fo full circ in underwear overwhelmed the fear of losing skin mobility and sensitivity and got the full deed.
in hindsight, it turns out my glans had already gotten "circumcised" during semi cut years so I had no adaptation to make once fully cut, I was comfy in underwear from day 1.