Children and use of diaper - upto what age?

Tweet

My children are grown ups now, still I remember when they were small I never wrap up them with diaper by 24 x 7. We used it only on going out for any function or on travel. My younger son refused to use the same once he becomes completed one year old. I gave some extra efforts to make them habitual when they want to pee. My neighbor’s child is 2 and half years old now and still 24 hours he is on diaper. I told his mother to avoid this diaper as it is hot climate. But I realized she is not that much interested to change the habit of the boy. I think children never learn the good habits on using the diaper without any restrictions. I am not against the same but I felt it should be used on need, not always. Your views please?