“I hate to be a stick in the mud but primer compound is lead based. There is lead or lead residue involved with every stage of reloading even depriming. Young brains are even more sensitive to lead that adult brains.”
Okay. So make the child wear some nitrile or latex gloves and a respirator mask so he looks like Darth Vader or an Ebola health worker!
LOL!
I used to be in charge of the lead program at a battery plant. The guys had gloves, suits and respirators, even with all that, there were always a couple than managed to get their levels up into the danger zone.