And not to mention, again, that nudity, is not pornography, and therefore the sale to minors is not illegal (in the States anyway..)

True, its not illegal, just as it is not illegal for a 14 year old to get a ticket to a rated R movie that shows boobs, but it is frowned upon by stick-up-their-asses conservative parents groups and the like. They do (unfortunately) have the ability to make things very uncomfortable for retailers, which they generally like to avoid.

Walmart doesn't sell M rated games? I haven't noticed, but I haven't shopped there for games in years.

Generally, it depends on what got the game its "M" rating. Bloody violence is usually OK, but if it has anything to do with sex or nudity, Wal*Mart will refuse to sell it. There have actually been several instances of games being modified just to suit the sensibilities of Wal*Mart and get the lower "T" rating. No publisher wants to lose the market that Wal*Mart offers.

"Want to kill your family? hell yes, you can do that."
vs
"want to express strong emotional feelings physically for your loved ones? hell no, get the fuck out you sicko."

The backwards "pornography" stigma is part of the reason our culture is as disfunctional as it is.
I plan on not only exposing my children to porn at an early age (not degrading porn...only an adult with a sound mind can properly process that type of imagery without being overtly affected), but making it a non-issue, like terrorism.
And like terrorism, people have demonized something that is actually quite harmless, and which has no true way to harm you. Terrorism is the futile weapon of the weak, and conservative attitudes towards pornagraphy are the futile weapons of an ideologically deficient minority that feels it's ok to legislate morality.
Pornagraphy casts a wide net, and not all of it is male-centric degradation. AND, the porn that *is* male-centric and involves degrees of degradation is *still* consensual.
The US (And Canada to a lesser extent) attitude towards nudity is unhealthy, and borderline dangerous.

As usual, Bill Hicks was right: "I guess a lot of women's attitudes - is that those movies are degrading to women. And I say: "Pfft, look at the guys! Are they exalted? I couldn't make a face like that if a car ran over my foot. She looks great. He looks like a doofus!""

I would hate to be your kid.
"Hey son, want to watch some porn?"
"I'm busy thank you much."

Sorry, it would be more like this:
"Son, I heard that your friend Billy got in trouble for sneaking a Playboy into school"
"Yeah Dad, he got in real trouble"
"Well, did you look at it?
"Yeah"
"Well, what did you think?"
Etc. Creating a stigma based around the naked human form is one of Western culture's most damning crimes. Without the allure and wonder displayed in porn (Even the most degrading ones I would argue, though they are not my for me) the human race wouldn't exist.
Sex is the original industry, and Porn sales have been reported to be higher than the top hollywood releases. With little to no advertising. Think about it.

I think that while your intentions are sound, it seems like the wrong way to go about it. Firstly, exposing porn to children at an early age may not be the best idea. I mean, kids now sneakily watch porn on their computers or read a Playboy under the sheets. This sense of secrecy and to an extent self discovery is important for kids to learn from themselves. Having them watch porn with your knowledge and your encouragement will take that away. To kids, porn is probably a non-issue. I say if you know he/she is watch porn, just him or her and do not talk about porn until they are old enough to form rational views about things like this.
And you won't get arrested for exposing this material to a minor.
I believe that porn is not degrading, but is simply a different form of art. Andy Warhol made porn, you wouldn't call him a sick, exploiting smut maker, would you? It seems that porn and our society at large is at odds because people don't find watching people do a natural thing on film a good thing.

You're an adult? I always thought you were a high schooler for some reason.

OH BURRRRRRRRRRRRN!

More like:
"Well, did you look at it?
"Dad, can we stop talking about this?"
I do wish you luck, though.

Decent try child, decent. I do find it hilarious though how deeply some users hold illogical grudges. That kind of negative energy hurts noone but you, since your vain attempt at wit certainly didn't affect me.