GH prescribed for people under 25?

I heard that anavar and small doses of GH over a long period of time are used to help kids grow that are undersized (very undersized..). anyway, if doctors can prescribe 13 year olds with gh and anavar, is it safe to assume that 19 year olds can use igf-lr3 or insulin safely? what are the side effects of taking these compounds (mainly igf) 5 years before the recommended year to consider taking them? i know hypo is the biggest thing, but why cant you take igf at 19 years?

Those kids have Turner's syndrom/GHD/and other diseases and are heavily moderated by doctors ..

No its not safe for you and you wont get the effect they get first they are kids and second they have a disease