Surely the first phase of exit has to be persuading organisations and workers who were never prevented from working in the first place to re-open??
What's the point of easing the rules to let more organisations open, if there are huge numbers of them which are already allowed still aren't?
I think the first phase will be a strong message from the Govt, along with advice/support etc., will be aimed at all the people/organisations who could work but aren't. Shops, garages, etc that aren't on the "banned" list need to re-open first. Of course, some can't due to staff/owners shielding, or premises that could never be made social-distance compliant (in the same way some could never be made disability compliant, hence the "reasonable" exemption), but we really need to move to get those which could open, back open.
I'm no fan of KFC, Greggs, McDonalds, B&Q, Homebase etc., but I think they're leading the way out of the lockdown. They didn't need to close in the first place, but are making tentative steps to re-open. The rest of the business world will be watching and learning from them. The only thing I don't like is the usual social media echo chamber whingeing about them as if they're doing something wrong and taking advantage of loopholes etc - they're not - they could have stayed open throughout had they applied social distancing, gone takeaway/delivery only etc., which is what they're doing now. Small private businesses have led the way - many stayed open throughout and many have already changed their way of operating to adopt social distancing, i.e. private garden centres, pubs, restaurants, etc doing home deliveries etc.