I just bought two RadCity step thru 3 bikes for my wife and me. We are "senior" adults (OK, we're running up on 70) and enjoy getting outside for hiking, kayaking, and riding. We embrace the idea in the Desiderata that says, "Take kindly the counsel of the years, gracefully surrendering the things of youth".
OK, so I can't ride my road bike as well as I once did. That doesn't mean that we can't still enjoy getting some exercise on a bike. I can still ride; if I need a bit of help, I'll gladly take it.
My wife's bike came in last Saturday and mine will be here Thursday. We tried hers as soon as we got it assembled and it is amazing. We're looking forward to many trips and have several trips planned for the near future including riding the historical trails at Yorktown, VA and the many greenways around our home.