If the scout can demonstrate the he can use a tool safely and correctly then he should be allowed to use it. I grew up using a welder when I was 12 and all sorts of saws and drills and even cutting torches by age 10.
Eat foods rich in Vitamin B-6: Foods with vitamin B-6 have a number of benefits after you give blood. Your body needs the vitamin to build healthy blood cells and it helps the body break down proteins. Because proteins contain many of the nutrients you need after giving blood, eating vitamin B-6 foods can be helpful.
During a whole blood donation we aim to take just under a pint (about 470mls) of blood, which works out at no more than 13 per cent of your blood volume. After donation, your body has an amazing capacity to replace all the cells and fluids that have been lost. Take red cells.