What do girls at the age of 19 wear in Seville, Spain? What kind of shoes do they wear in Seville, Spain too?

Pack clothes. It's going to be COLD for a couple of months, so, bring something you can layer. It warms up earlier than the Northern US, but about the same as the Carolinas, middle states. What makes you think you can possibly buy clothes in the US (I'm guessing) that will blend in completely in Spain? They have a completely different (very subtly so) set of fashion. You can NOT buy shoes or fashions in the US (or likely England, or wherever you are from) that will NOT look foreign in Spain. Sorry. When I lived there, a pair of shoes was about $20.00. Now, you're likely to be spending more like $100. (I believe I saw shoes were running, cheap, at about €70 or so, when I was there a few years ago...I stopped looking when I realized I'd never wear them). IF you choose to buy shoes, while you are there, to blend in, go for it...save your money between now and then. If you choose to buy clothes, go ahead. Know that you will NEVER wear them once you return.