Problem is people have been burnt before with restrictions being lifted then seemingly talking us back to square one. However the Vaccine does change things extensively (to the best of my knowledge it does at least offer some resistance to the Indian variant).
My big concern is forcing people back to offices, possibly via public transport. Post June 21st it might be possible for ten of you to go round someone's house but that is your choice and you don't have to do it. If someone lives in Worthing and works in London they won't have any choice to get on a commuter train and basically go from full social distancing to none. Also face coverings will probably remain compulsory on public transport, if for no other reason to inspire confidence.
I suspect we can progress towards normality on June 21st but not all the way until we get herd immunity in September.
My big concern is forcing people back to offices, possibly via public transport. Post June 21st it might be possible for ten of you to go round someone's house but that is your choice and you don't have to do it. If someone lives in Worthing and works in London they won't have any choice to get on a commuter train and basically go from full social distancing to none. Also face coverings will probably remain compulsory on public transport, if for no other reason to inspire confidence.
I suspect we can progress towards normality on June 21st but not all the way until we get herd immunity in September.