I admire kids that can look after things (and their parents for teaching them to).
I bought 3 of my nephews pocket knives for Christmas this year, they are between 7 and 11 years old. They have all lost them now, but then they have wealthy folks and loosing stuff is not an issue for them, mom will just buy a new one mentality!
I bought my son a Leatherman when he was 9, he is 21 now and still has it.