we live in vermont, and all 4 of us have sun screen on daily. DD's have it on their face only in the winter, and in spring/fall any exposed skin.
When we're in Florida, doesnt matter what the time of year is, they have sunscreen on, as do DH and I.
When we go skiing, we reapply after lunch, the sun glares off the snow wicked!
Nobody should ever go a day without sunscreen on their faces at least!
Brandy