Relatives are advising that I should put my 4 year old daughter in a play school.

Answer

If you want to ruin the moral character and Imaan of your daughter then put her into the haraam play school. It is HARAAM for parents to abuse the Amaanat of a child entrusted to them by Allah Ta'ala. It is your Waajib obligation to care for your child. Parents who abuse their Amaanat and cast their child into the snare of shaitaan's play school, are vile. Such parents do not deserve children. The reasons they give you for their shaitaani advice are inspirations of Iblees. Never allow your child to go to the devil's play school. Their brains are corrupted by Iblees. Don't accept the haraam advice being given to you.