Quirky2

I am in my early seventies and thinking seriously about retiring too a narrow boat but worried that I may have left it too late in life. The aim is to find a permanent mooring and occasionally travel some of the canal network, in a boat that will be less than 50ft. I am generally a fit, active and hard working person but wonder if a single person could manage the physical side such as going through locks on their own. Are there boaters of my age, and above, out there coping with the normal physical canal life ? Any information/advice would be welcome.