By the time you purchase a steel press, or a kit to convert your lead press to steel, then purchasing different components, wads, hulls, primers, shot sizes to experiment with, then consider your time assembling , going to the range to pattern and shoot, If you consider all this.....
Reloading for the reason of saving money is long gone.
I think you would be much better served taking youngster target shooting often at the clays range, and teach him to shot with lead.
then go and purchase a case or two of your favorite steel loads and have fun hunting...The only reason I reload , is I have all the equipment I bount LONG time ago, and I only load to get target / clay ammo to fit my needs.
I don't like having to shot factory target ammo at the range that has typically 1 1/8 oz of shot, and kicks like a mule.
I typically load 5/8 oz of shot in my 12 gauge, sometimes 3/4 oz and break targets just fine.
the recoil of the 12 then becomes more like a 20 gage.