I don't think it can happen again. As unpalatable as it may be, I think the economy needs to come first now and if that means some lives being lost, then that's awful, but we can't afford another lockdown.
I say that as someone who is vulnerable, but life is for living, not hiding away.
For most people, without underlying conditions, this is a relatively mild illness and ruining the economy will take lives too.
Without a decent economy we can't afford lockdown anyway.
I agreed with the 1st lockdown, but I think the time has come to acknowledge that covid is here to stay (for now at least), so life can't simply stop until a vaccine is found as that is likely to take years.
Instead of, and before, another lockdown happens, I think the current measures of SD, mask wearing and group size, etc, should just be better enforced so that businesses can stay open; possibly with a more official mask exemption policy...maybe a certificate like they use in some other countries so that businesses can legally turn away those simply unwilling to wear one, rather than unable.