Being with grandparents can increase the baby's sense of responsibility, but it is best to live with parents. The love of grandparents is important, but the love of parents is more important. It is reported that the best time to cultivate feelings with children is from birth to 5 years old. If mom and dad are away from the baby for a long time, the baby may feel inferior when he sees other children accompanied by mom and dad. So before the age of 5, try to live with the baby's mother. Babies usually enter kindergarten at the age of three.