I have very pale skin. I always have. I don't tan easily, but neither do I burn easily - unless I do something silly, like go hang out at the beach all day without protective clothing or shade.
My children have my skin type. They don't burn easily, but neither do they tan easily, and so, even though they spend a couple of hours outside every day - especially during the summer - they don't have much of a tan. Their time outside works out roughly as: an hour or so in the morning caring for the animals and puttering around the garden; sporadic time in and out throughout the day; and a couple of hours in the evening, before or after dinner, just playing and/or riding bikes.
In fact, they're so pale that, the other day, when we were at the grocery store, the cashier quipped that they needed to get out more. He suggested a day camp, like those offered through most municipal recreation departments.
Today, my daughters devised their own solution for tempting them outside. They won't get more sun, necessarily, but at least they're not indoors, playing video games - which is what the cashier assumed they were doing rather than being outside. The idea that they might be outside riding their bikes down our shady road never entered his mind ;).