That's the thing, even though outdoor centres can open, is it actually worth it? All indoor areas must remain closed (apart from toilet facilities I hope), and remember that in Tier 4 restaurants must close completely. That means no takeaway service, which I assume means that kiosks can't open either. Personally I agree that it isn't worth them opening currently. At least places can still get funds through online donations and shop purchases though, although obviously that won't be enough if they're closed for a long period.