Is it permissible for a child to work as a fashion model on television or in advertisements, and is it permissible to use his picture for promotional purposes for an association or institution?

It is forbidden for children to participate in fashion shows or advertisements if they involve exploiting their innocence, promoting forbidden things, exposing them to the risk of harassment, or raising them to display their beauty and mix freely (with the opposite sex), especially if it is through fashion companies that aim to spread indecency. However, if the photography is for a legitimate need, far from exploitation and corruption, such as advertising useful products or charitable works, then there is no harm in it.