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.
80/20 Diet: To maintain the alkaline balance of your blood, your meals should be made up of 80% alkaline-forming foods, such as vegetables, fruits, nuts and seeds, herbs, and grains like quinoa, with 20% acid-forming foods, such as meat (free range meat or wild caught fish), beans, nuts (walnuts) and fruits (berries), minimal dairy (avoid contaminated milk and cheese), minimal carbs (pasta, bread, potatoes, rice which all turn into sugar).