It shall be unlawful for any person having the care, custody or control of any child under the age of fourteen years, to exhibit, use or employ, or in any manner, or under any pretense, sell, apprentice, give away, let out, or otherwise dispose of any such child to any person in or for the vocation or occupation, service or purpose of singing, playing on musical instruments, rope or wire walking, dancing, begging, or peddling, or as a gymnast, contortionist, rider or acrobat in any place whatsoever, or for any obscene, indecent or immoral purpose, exhibition or practice whatsoever, or for, or in any business, exhibition or vocation injurious to the health or dangerous to the life or limb of such child, or cause, procure or encourage any such child to engage therein. Nothing in this section contained shall apply to or affect the employment or use of any such child as a singer or musician in any church, school or academy (or at any respectable entertainment), or the teaching or learning the science or practice of music.