I've got to say, the obsession over here for sunscreen is a bit much for me (I grew up in a hot country).
Every even slightly sunny or warm day at nursery and reception it is lathered on my kids.
Fair enough , parents would read teachers the riot act if little Johnny came home burnt.
But I know plenty of people who do the same at home, as soon as the sun emerges even a little.
Their kids surely have a Vit D deficiency?
My kids are mixed race so need more exposure to the sun for their Vit D and I make sure they get some time without sun screen.
I don't wear it much in the UK, but stick to the shade, don't sunbathe, wear hats etc.
I try to get 15 mins of sunlight each day for my Vit D.
Obviously nobody wants melanoma, but I think you need some sun.