In the almighty words of "Tim" from Monty Python's The Holy Grail, "Big, sharp pointy teeth..."
I think that I've heard it best described that their teeth are like stiff Velcro (not the soft fuzzy side of Velcro!)...I've been bitten once, by a sub-adult, and I got essentially "pricked". I'm sure, if your snake was to bite you or your children, you'd feel more from the shock/surprise of being bitten than the actual bite itself. At least, that's how it was with me.
I defer to all of those who have been bitten by adults, as I have yet to experience that.
(I did have a slight bite from one when she was a juvenile and I could see that she was aware in the same second that she "gripped" onto my finger that she knew that my finger tip was not what she wanted at all...and she let go immediately. I felt nothing but the slight pressure of her mouth from that...it was funny.