Hi Ian. It’s never too late to start practicing yoga. I started aged 40 and have found so many benefits. There is no right or wrong. What really matters is the earnest desire to focus and improve, a little at a time.
I mostly practice with Kim, at home. We are slowly starting to invite friends to join us, hoping to start private classes in our home studio. A weekly class is a good way to start but followed up with regular home practice when you have a good grasp of a routine.