We came to the park with 4 children (9, 8, 2 and 2...

We came to the park with 4 children (9, 8, 2 and 21).
Only the 2 kids did not pay their tickets.
Our 8-year-old boy measures "unfortunately" 1m18.
Many games were forbidden to him ... While other younger children were able to participate. Imagine his frustration !!
In addition, when we arrived at the pool, access to the slide was denied. Except at this level, no prohibition on the size ... And the gentleman in charge of the surveillance (only for the slides and the 2 spaces swimming pool), nicely indicated to us that if he was not accompanied he refused him the l access to water. How to accompany a child of 8 years knowing swimming and 2 small at the same time? At what age do they have the right to have fun on the toboggan?
Regarding the pedal boats, only half was in operation because the person in charge of this space was alone ...
In short, we are disappointed.
Maybe we need more staff (we came in August in high season), review access to the game in relation to the size or age of the child ...
Moreover, why make children pay from 1m to 1m20 at the same price as the others if most attractions are forbidden?