The Polos' home was in:
1 Portugal
2 France
3 Jerusalem
4 Italy

Marco Polo was born in 1254, in Venice, Italy. He traveled extensively with his family, journeying from Europe to Asia from 1271 to 1295. He remained in China for 17 of those years. Around 1292, he left China, acting as consort along the way to a Mongol princess who was being sent to Persia.

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.