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The answer to this question varies from person to person, and the situation of each family is different.
Generally speaking, the growth, development and personality characteristics of babies will affect the feelings of adults. However, under normal circumstances, when the baby starts to eat complementary food around 6 months, the sleep mode and time gradually stabilize, and adults may feel relatively relaxed.
In addition, when the baby starts to learn to sit up, crawl and stand by, it will also make adults feel more relaxed, because the baby can play by himself without the constant company of adults.
However, each baby's growth and development has a different timetable, and parents need to make judgments according to their children's situation.