The things is- there's no parallel universe whereby if we relaxed all restrictions, life would go back to normal.
Even the economy won't go back to normal, because large swathes of people won't want to be out partying whilst they are either at risk themselves or putting those they love at risk.
Similarly, mental health will take a hit either way round- either from people living with the idea of a deadly disease (and the body count much higher around them) or within the NHS/key worker groups where the body count would also get even higher.
Lots of services which help the most vulnerable won't go 'back to normal' even when lockdown ends, as the type of people who work in them (middle/older aged women often) might either have their own underlying conditions, or just get sick from corona. That's what scuppered schools in the end- lots of people being off sick and shielding, not the direct announcement of them being closed.
I am actually up for a bit of relaxation, in terms of businesses going to open to see if they can work without putting their workers at risk- if they can, they should open, including shops. But, it's going to be a strange world of fewer shoppers, lots of masks, lots of distrust and suspicion, not being able to see relatives over the age of 60 odd (for their sakes) , no international travel, no holidays (yet) and so I really don't think there will be a massive improvement either in the economy or in people's mental health for a long while yet.