Hey, not trying to make you feel bad (or worse) and there's no need to feel bad at all. Just learn the skill; make it sometime this week, it shouldn't take more than 30 minutes max including washing your hands afterwards.
I know people who swear they can change a rear tube and be re-inflated in 4 minutes. I'm not in a race, it usually takes me 12 to 15 minutes by the time I dig out all my tools from the bottom of the bag, do the work, and put everything back in the bag.