It all comes down to building mgmt policy. Some places allow bringing in bicycles in while some doesn't. The ones that don't should provide adequate bicycle parking facility. The perception of safety is just.... perception unless it is backed by hard facts. It's a give and take situation here.

I don't know how some of you feel if someone wheels their bikes through your home on your carpeted floor. But I sure don't like it. Same with no outside shoes indoor policy at my home.