If you try to change someone way before their time, long before they have the opportunity to understand, to take in, to absorb the change, it can lead to madness or to the complete opposite results.
In most cases, this is not even possible. Each person walks by his/her own free will. But even when it is accomplished, temporarily, because you have the power to do so, it will all turn against you and against that which you are trying to accomplish.
Enforced or un-willed (from the heart) change is only temporarily possible. Whatever “temporarily” means; days, weeks, months, years. If it’s not your own Will, it will convert back to what it was... to what you
really are, eventually, with all the consequences of the action involved and experienced.