Wise words Sonia, and I do hope your Mum makes a good recovery.
I have always been very careful in the sun, high factor, sunshade and a hat when out walking. We have the ginger gene in our family so it makes me very cautious. My son is ginger and his sons are blonde as is his wife. Daughter is blonde (but dyes her hair darker now), but her sons are darker taking after their Dad. So over the years there have some sunburn crisis.
Different Sun creams suit different skin so if you find one that works for you stick with it as it's usually later in life that the damage shows up.
Val x