Honest answer is No. I only got into window cleaning because of WFP some 9 years ago. It started out as an add on to our pressure cleaning business, now is the main part of our business.
Whilst I can clean trad way, insides and some shops, I would not feel safe climbing ladders.
Good question Ian...It does make it easier for people to start up window cleaning, if you don't like heights etc, however, you still have to be business minded, still have to work out in all weathers, still have to do a good job cleaning the windows, still have to find customers. I have seen many new window cleaners start up WFP and after a year or so they are gone.
Steve G