Beautiful place. Recently, in America here. the first floor is more expensive than the second and third floor. I really can not understand why they decided to price rental apartments this way. And any family with more kids is referred to the first floor.
Usually the first floor is a bit lesser than the second or third floor because it provides less security. Apartments prefer families with more than one kid on the first floor could be to help with noise issues as kids are prone to running up and down the apartment floors. And incase of fire, it would be less hassle to evacuate children from the first than second or third floor. My take