I seem to remember being taught there weren't any flying dinosaurs. Pterodactyl, Pteranodon, etc, weren't dinosaurs, they were reptiles.
Never studied it intensely, so it could be a matter of details though.
There were flying dinosaurs. In fact, there still are flying dinosaurs. The ones that still exist are commonly referred to as "birds". They are theropods.
We were made this way for very good reasons, even if we don't understand them. Imagine if somebody proposed the same thing for female infants. What would be the reaction? Leave all minors alone. Let them decide when they turn 18.
Except maybe there isn't a very good reason to have one. At least one that's better than the reason to remove it. There is likely a very good reason ancient cultures with a huge emphasis on cleanliness adopted the practice and codified it into their religions...probably much of the same reasons these doctors are touting.
Turns out it's that weird wrestling / handball game they play in the US.
Well, that's about the creepiest description of American Football I've ever seen...ewww.
Any given program will expand to fill available memory.