Yes, in Europe homesharing/private rentals have existed for a long time. AirBnB did not introduce anything new. It is one of many players on the market. It is mainly used by investors and propertymanagers because the money is „Untraceable“. Create a PayPall account, and the Money is untracable.
AirBnB is not hardy known, but more known as the OTA for “illegal” business.
On top of that most classichosts do not like the amount of control AirBnB takes over, so it is still avoided by a lot of hosts.
The problem is that AirBnB is not only taking housing of the market. In Austria it is also removing money from the local economy. Where classic hosts would live in the area and spend the money in the area, AirBnB hosts most often are foreign investors, the income form the rental stays outside the local economy.