The first shots in the american revolution were fired:

in boston harbor
at lexington
at breed's hill
at bunker hill

depends on the age of the teen, many believe by the age of 16 a person should know the strong difference between right and wrong along with the difference between risky and immediate death. swimming with sharks might be dangerous but swimming with sharks while bloody meat is attached to you is just insane. even more if you have no idea what you're doing. however, no matter the age, as long as the person is skilled enough and has the mental and physical capacity to control their actions doing whatever sport they put their mind to is all that matters.

during the middle ages bibles and most christian literature was written in latin i think that’s the answer you are looking for