One of the other issues with things like Kindergym is they are block bookings and tend to be quite expensive.
While families might be able to afford the occasional rainy day in softplay committing to a weekly session isn't affordable.
There's another thing that's unable to happen, Scouts unless they have an outdoor space, near their Hall. They can't meet in parks because they still need to provide toilets, and the public toilets are locked at night.