Regular use of SPF 75 can be immensely helpful, from a relatively early age, in the prevention of UV harm to the skin.
Other areas of the body can also be sensitive, and may need their own specific form of sun protection. Aside from general sun block, the lips and hair could also use sun protection. Some manufacturers sell lip balm with SPF which is especially useful for sunny winter days when people forget they are still in harm's way from UV rays. SPF 30, because it is understood this isn't to protect from all day exposure, like sun block for the beach.