I am literally stunned at some posts... Cannot believe people would actually write these things, or maybe i should given the results of the UKIP...
If I ever witness bad behaviour in a child playground caused by teenagers I would confront them and ask them to leave unless they can prove they are in charge of a little one.
The playground is for up to 8yrs old end of.
No matter your background, walk of life or faith the rule is the same for all.
Like i always say, respect goes both ways. What i don't like is that the attitude of teenagers seems to always be excused by "never mind they are just teenagers".
Having said that, OP I would have never reacted like you. Seem a bit OTT to me.
I also vote for an adventure playground aimed for the 8+. I absolutely agree there is space and we should support their need of blowing off some steam.