My wife and I will be traveling with our young adult children (21 and 17), staying in Cologne for 2 nights. I'm intrigued with the youth hostel Koln-Riehl for its location near the Mulheimer Brucke (I'll be running in a half marathon which starts at the bridge) and a place to park our rental car. I thought the atmosphere might appeal to the kids. While they don't explicitely state an appropriate age limit, I have a feeling we might not fit in since we are in our early 40's. Is this really an issue or would we be fine?