Maturity is more to do with the mind than with your age. Sure, your body physically matures. You cease to grow, you hit puberty. Mentally and physically women mature sooner than men, but mentally no one is mature when they turn 18.
It Mean You're Mature Enough To Tolerate Your Dislike - Great Inspirational Quote
Don't give them a taste of their own medicine. They already know what it tastes like. Give them a taste of your own medicine. If they lied, let your medicine be honesty. If they played with your emotions, let your medicine be maturity. . . Don't be afraid to be yourself, even if it means removing yourself from lives that you want to be in. You are, no doubt, worthy of being valued for who you are. So be who you are. ~ Najwa Zebian