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.
Blood is mostly water so be sure to drink plenty of water before and after donating blood to replace those lost fluids. Eat foods that are high in iron in the days before and after donating blood to help your body make new blood cells.The form of iron in meat, poultry, and fish is the best absorbed. If you're a vegetarian, prunes, prune juice, and blackstrap molasses are all good sources of iron.