Question: Here in South Africa, when a boy or girl reaches twenty-one years of age, people celebrate, recite Qur’aan and cook various dishes of food. They also gather and give the twenty-one- year old boy or girl a key. Are these acts permissible in Islaam? What is the ruling on such acts in Islaam?
Answer: What you have mentioned including celebrating and reciting Qur’aan upon reaching twenty-one or twenty-two years old has no basis in Sharee`ah, rather, it is a Bid`ah (innovation in religion) and imitation of the Christians (in your country)… read more here.