Earlier quoted context omitted.
Ha! I've travelled to remote parts of South America, Africa, Asia, and the only times I ever experienced getting robbed or deeply fearing for my safety was in Barcelona and Philly.
Barcelona really? I am from Barcelona but never thought people are scared to be in Barcelona. I heard people get robbed in Las Ramblas years back but now its quite safe. You will never get mugged in Barcelona according to my experience.
Anyone who doesn't look Spanish is likely to get pickpocketed on Las Ramblas. I've heard multiple stories and seen it myself despite having only visited a few times.
I wouldn't feel unsafe there, but the risk of getting robbed is very high.