A COUPLE MORE VAMPY QUESTIONS THAT JUST CAME TO MIND: can they still enjoy human food? i know it wont help their hunger but can they still taste and eat it like before?

And how long can they stay in the sun exactly before they start burning? Katsuki loves the sun so hell try to stay out as long as he can...

edit: OH and does the shade of a tree/clothing help protect them from burning? JUST COVERING ALL MY BASES HERE