Whilst out today, we passed an adventure playground and DS (aged 14) decided to climb up some of the tall climbing structures and hang off the ropes. He was not in any other child's way.
A small child (aged about 5 or 6) came up to him, asked how old he was and then said "My Mummy says you're too old to play in the playground". DS said "well I'm not", and carried on doing his own thing".
DS was luckily oblivious, (my hackles did rise against the unknown parent), but was he BU? There was a sign up indicating that one area of the playground was only for children up to age 7, but no signs anywhere else suggesting acceptable age (and DS was no where near the under 7s bit).
Would you consider a 14 year old (playing considerately in respect of other playground users) to be too old to play in a playground?