η περίοδος που κάποιος είναι ενήλικας angļu valodā:

Childhood is better than adulthood.

Only children are more likely to grow up geniuses, too, because they also have to enter the world of adulthood sooner.

the next stage in a man's life is adulthood

approaching adulthood

The graduation from elementary school to middle school is regarded by some as the first step towards adulthood.