Playparks

Why are there no playparks on the "main" part of Plumstead Common - I'm thinking of the area near the rugby, bowls and tennis courts (are they still charging for these)??
I know the one in Winns Common has recently been refurbished but I'm not such a fan of it as it is mainly hidden behind bushes and always feels rather unsafe to me. It is a shame that the old boating lake is not used as a splash park/paddling pool and that the little hut doesn't reopen to sell teas and ice-creams. It might then get more use.
I do like a snack whilst at a playground!