Palma's equivalent of Las Ramblas, Passeig de Born is the main outdoor shopping street with all the…read morevery-high end shops here. You will be dropping some major coin if this is what you want. In the evening, it's surprisingly busy with families, strollers, live music and people selling balloons and pashminas.
On a weekend night, there was a decently high police presence but I did not see nearly enough concrete planters or barricades that might prevent someone from doing something extremely stupid. Barcelona's tragedy is fresh in my mind.
Watch yours possessions. Big crowds, lots of tourists, there are going to be pick pockets.