Did I say people don't need a good diet and they just need to get outside more?
Yes, this is what you said. Several times. Let's take a look....
And you may have had a dabble with Google, but NICE studies (a reliable source) show that 87% of adults have below 75nmol/L over the winter months and the Dept of Health therefore recommends supplementation over winter. So yes, I maintain that you're wrong.
If you live in a hot country and go through a bout of cloudy or poor weather, then your body can hold Vitamin D in fat, but not so simple in the UK. And like I already said, Vitamin D alone is not the whole story - it is linked with the absorption of other minerals and vitamins. Nutrition and lifestyle is complex, and requires a careful balance. You don't just tell people to pop their kids outside when they can't afford to nourish them through their diets?! Astonishing.
Sunlight may be most efficient way of acquiring Vit D, but its not enough. And yes, I will argue with some stranger on the Internet, or anyone in real life, or frankly anyone, who looks down their nose at struggling families, and tells them, 'pooh, those children just need to be outside more, they don't need feeding properly'.
Shame on you.