Whether topless women should be considered pornographic or not has been under debate recently. Breasts produce milk for feeding children and so biologically there is nothing sexual about them. Is it pornographic for a mother to breast feed her infant in public? A hundred years ago a woman exposing her thigh would have been considered inappropriate. I think it's just a matter of time before the ban on women being topless is lifted.

It's only tits. It's only obscene if you have a fetish for that.

If you show no signs of getting gratification from it, depending on cultural background the mom would be more worried about the fact you don't since not many people realize it's a fetish.

Boob fetish...? Not really following you. Also, you never addressed my question; would you think that an average mother would like their child looking at this?

I thought I did, could you tell me what bits I missed?

You said they'd be worried, but that's not really telling me whether or not they'd tolerate it.

Well if you are just browsing and you tap the on the shoulder so you can tell them you think the art is neat, they likely won't be mad at you, as much as, at least if you live in a western country, would wonder why you are not embarrassed to show you mom a drawing of a fish with tits.

Your example is rather situational in the first place, and knowing my parents, and my friends parents growing up, this wouldn't fly in the slightest. Now think, if this would go with severe punishment back then, and let's say that the world has become less conservative, which it has, do you really still believe that there wouldn't be repercussions from such a an image being viewed?

If you were honest about it, a responsible parent might find it to be a good parenting opportunity.
Yes I avoided the main question, I don't understand it. Please rephrase it in simpler terms.

Do you think that, among the common American household, the parents would agree with this content being suited for a minor? Not what the parents should do, but what they would do.