Both of them are quite noteworthy in their accomplishments. Of course I don't know either one of them personally but I choose Bill Gates because to me he seems to be a more friendly down to earth person....
LOL ! I don't really know; I'll hazard a guess that I have 12 pairs of shoes. All have been worn at least once but I have a pair that I wear nearly everyday. When they wear out, they get added to the pile of shoes that I don't have an accurate accounting of...
Probably around 9-10 but the parents need to keep track of what the kid is doing. One advantage of kids having a cell phone is the parents can use the GPS feature to track them...