As far as ass sex goes, poo on my hand? I’ve had poo on my hand. Mine and others. Whatever. I’m more concerned about a guy putting his dick in someone’s ass and getting a urinary, bladder, or kidney infection if he doesn’t use protection. But once again we’re assuming monogamy here where as in porn life and non-monogamy life those infections would be the least of your problems if you had unprotected ass sex.

If your wife and you are monogamous then she can afford to turn down sex with condoms. If not, well you’re definitely running your risks. And we’re talking much more risky than just having a sugary snack now and again.

The feel of a woman on your hand isn’t the same as through a glove. 

The taste and smell of a pussy isn’t the same as rubber

A thin condom still dulls some sensation. It also interrupts play. 
Yes even anal play, do you enjoy less it because you are eeked out by the rare possibility of poo on your hand? Not everybody is. In fact many people would be turned off by a partner who was afraid of their body. 

Just because safe sex is a good idea does not mean it’s as pleasurable, however much you want it to be. Get real. No more than Brussel sprouts or cabbage is good for you but that doesn’t make everybody like the taste. Some do, many don’t. Most people prefer sweets even though they have no health benefit at all. 

Everything I have said applies the other way too. My wife for example hates condoms (i dont mind them). She will use them if she must but prefers not to fuck at all than to use one. 

Nice idea, but idealistic I would say. 

Mykey