Think it depends on the age of the kids, their size, and on the gun. I would strongly encourage being sure the gun will perform well with the load you are going to run.
Was using 85 grains loose pyrodex for my oldest daughter with 240 grain xtp mag from TC black diamond when I took her with muzzleloader, she was 8 and may have weighed 70 lbs. Was less recoil than her .243. Normal load I was running on the black diamond was 120. On paper she did great, she never shot a deer with the load though. Youngest daughter, just turned 15, has shot my accura with full load, she always wants to try shooting different guns though.