Your job is not over. After installing the play sets, categorize them as per the age brackets of kids. You can use signage and fencing to differentiate the equipment. This would educate the guardian and parents to judge which playground set is age appropriate for their kids.
As per the recent revision adapted to American with Disabilities Act (ADA), commercial playground should be accessible by kids and adults with special abilities. So, it would be a great move to design a wheel chair accessible playground. Equipment are also required to be ADA compliant, therefore, make sure you install the play sets on which physically challenged kids can also equally enjoy with other children.