My son is 8 and my daughter is 3 and they both accompany me to the field regularly.

My boy is able to work his way through the woods better than most grown ups I know and has taken small game and waterfowl with his 410. He helps clean it and has no problems with it at all.

My daughter is still a little young for all that.

I think at 11 he should be able to handle seeing the impact.