The children lack maturity, which they were unable to identify exactly what is wrong and what is better as an adult due to lack of maturity and experience are not sufficient.
Children also lack the maturity that they can not distinguish what is and what is not as good as adults due to the lack of maturity and experience is not enough.
The children lack of mature which they cannot distinguish what is wrong and what is better than adults due to lack of maturity and experience is not enough.