Dear Nora, your arrival was planned at 4 pm, you arrived at 6 30, which could be a bit unusual and my work at the theater begins at 6 pm, so I asked my father to welcome you. He is a man living here for 50 years and knowing Strasbourg, as we say here, like his pocket. He is also well built in Art and History. He doesn't want to sell anything just share a certain knowledge making enjoy the town beyond the appearances. Airbnd travelling, as I understand it, means also meeting people, learn and enjoy from and with them, that is of course interaction. The other way, as you seem to like, is to keep staying in one's own bubble alone or with husband, so it will be more usefull renting at some hotel where there is only a cashier's desk without any human being.