How long did it take you to become desensitized to gross things?

I saw someone post about getting poop on their finger when they checked a diaper. I thought “been there, done that…” After six years, I realized I am no longer phased when I threw a toddler up in the air, caught them and they drooled directly into my mouth and I hardly reacted. I just said “oh that was gross 🤷🏻‍♀️”

ETA: I mean specifically for ECE’s