NZ has an acknowledged alcohol problem, per links.
I still don't believe it to be any worse than anywhere else in the world, despite your "links"
Vit D difficult to get May to September, per link. There would be further difficulty in event of lockdown.
I live in the middle of the South Island, and I reiterate I have NEVER heard of anyone with a Vit D deficiency. We do still go outside in winter, and there is still plenty of sunshine. We are, by and large, an outdoorsy sort of country. Also, all the people who work in factories, offices, shops etc - how are they getting less sun exposure under lockdown?
Your argument seems to be based on us being in lockdown in winter - we are only in the second month of autumn and I repeat, there is a lot of sunshine.
As to my going out - I used to go for one long walk a day, which I am still doing. Otherwise I am sitting outside or am in the garden - as are many other NZers at present - and for your information I live in a flat!! If you live in NZ you, as I said, obviously live in a very different place to where I do. My nearest city has far more citizens with gardens than are living in apartments without them.
You seem to have some sort of agenda where you wish to portray life in NZ under lockdown as a very dismal affair indeed, whereas most of the people I know are just getting on with it and in fact a recent survey produced the result that the majority are in favour of it continuing for longer.