Its not competition if they dont want the work.... Most domestic cleaners that I have met dont do many insides, but each to their own.
I would suggest if someone chooses not to trad or do internals then its their business decision, I would also suggest its not your right to brand them not a proper window cleaner..... Its disrespectful, unless things change this place will die cos its all just name calling and one upmanship at the moment.....
If anyone dares to say something a little out of the ordinary its jumped on and ripped to pieces....
Lets just have a think about the evolution of tools in general.
In building, did all the chippys thro away there hammers when the nail gun arrived? Or maybe there saws, when the circular saw came out? No
How about mechanics, did the mechanics through out all there spanners when the pneumatic wrench was invented? No
Did the broom become obsolete with the invention of the hoover? No
So why would it be different for window cleaners??!?
Wfp is an excellent invention, but trad still has its place, and always will.