Minimum age of user ("who") is 15 years old. Before 15 years We suggestes to Parents that provide intruction about spiritual ("spiritual called of known to own soul and rules of how to live life") And after 15 years they shall be understood.
We not Impress to accept to spiritual
We not impress to any person to live with spiritual . Only provide instruction of real life. Why are we come to earth ? should we what to do to be free from birth-death circle ? Etc.
You need live with spiritual , you can got god to coming age