Well that's an old wives tale, no Studies have ever been shown that lifting weights stunts or inhibits growth. So stop listening to They because they don't know crap!!

Kids as well as adults should use their legs instead of their backs to lift heavy objects. An injury is a possibility but not a guarantee from lifting the wrong way . I've never heard of stunted growth from lifting heavy objects.

Lifting something heavy will not stunt growth. Lifting something that is heavy can injure people of any age if not done properly. Depending on the age and coordination of the child lifting can be done safely. I wouldn't expect a toddler to safely lift anything of any significant weight. A preteen on the other hand could within reason.