I've stayed @ HIs all over the US, and find them excellent as Ed says.What's it like to visit a hostel as a retirement age man in America? Do you get any weird reactions or are they welcoming to you? Do you see many Americans your age? I know hostels exist here but I don't know anyone who visits them and it seems super niche here.
There is mix of Young, Middle Aged and Seniors like me, and people from all over the World stay @ these jewels.
Some even have Private Rooms for reasonable prices, and Dorms for Males and Females where you share the Bathooms.
All include a Free Breakfast, and use of the kitchen if you wish to prepare your own meals.