I'm not getting that....I think what people "on here want" is to feel safe while on vacation at their hotel/condo. Allowing unfettered access to unpaying guests or visitors does not contribute to a secure environment. If someone wants to invite someone else back to their hotel room, they should sign that person in at the front desk and then THEY are responsible for the conduct of that visitor and what transpires while that visitor is on site.
Along with that make sure there is plenty of security personnel on-staff to ensure the safety of the paying customers.
It's really not very complicated.