The sometimes-heated discussions about his ethnicity have been rather...revealing.
But, perhaps the most important question has been all but ignored...
Is Miles too young to be Spider-Man?
Look at this page...
|Click on art to enlarge|
Now, Peter Parker was a high-school junior/senior, average height, but thin.
Even in disguise, he's not that imposing a figure, but obviously a young adult...
Then Spidey would kick their butts.
After Ditko left, Spidey's look became more muscular until he was on a par with most other acrobatic heroes like Daredevil or Black Panther.
How is a 12-14 year-old (even spider-enhanced) possibly going to look like anything but a kid in a Halloween costume when going toe-to-toe with characters who look like Schwarzenegger in a funhouse mirror?
Kid Spider, perhaps.
Try again when you grow up, Miles.