Do you agree or disagree with the following statement? «A person`s childhood years ( the time from birth to twelve years

In my opinion, every year in a person life is important, because we are studying during all our life. By the way, childhood years, from birth to twelve years, can be the most meaningful time in creating our personality. Why am I think like this? Because when we are young we are learning how to talk, write, be polite and so on. In brief, what we learnt from childhood years, it who we are when we are adults.