I make my living as a stylist, so I should know the answer to this but...

I'm going to Europe for a month and am starting to plan my wardrobe. Does anyone know if it is taboo to wear white t-shirts in Europe? It would be a cute white t that I believe could be a good staple and layering piece.

Next, has anyone seen any really cute coral jeans? I would like cropped if possible, but it's not a deal breaker. I've seen a few, but they seem to be almost neon--not the look I'm going for. Thanks for any ideas.