Great idea to arrange enjoyment for kids and tins where physical activities with more fun rendered
On birthday or any organized party privately or from school groups.
Gathering for any party is not important ,If pocket allows to spend additional expenses on occasions this idea will be best I suppose.
I have experience of number of occasion been a part of parties .So seen craziness among kids.
In my cases I never celebrate birthday parties of kids as an editions party here.A complete party I prefer on occasion at one venue with light food and soft drinks.So fine, let the kids enjoy their own way what they like to do .In fact,this is real happiness and worth of money.