I wouldn't attach too much importance to these student riots. I remember when I was a student at the Sorbonne in Paris, I used to go out and riot occasionally.
I'm a firm believer that lighting affects mood, and twinkly lights on strings bring something magical to occasions ranging from concerts to weddings, though I'm fond of using them as year-round home decor. There's a reason why they're sometimes called fairy lights. When the night is right, there aren't any strings at all.