Where I used to live, the council built a new civic centre with "self-cleaning glass" (try not to laugh)
because of this, it was a very unusual shape, with glass roofs everywhere. (well, since the glass is self cleaning, access is not going to be needed, right?)
A year later, the glass was so dirty it might as well have been made of wood. And of course no one could clean it because access was a major problem.
The conclusion is, if glass gets treatment that will help to clean it, this will only ever reduce the frequency needed, not eliminate cleaning altogether.
And if these treatments become widespread, its no good us window cleaners moaning about it, we have to adapt to that. Companies will use it if it saves them money regardless of what any window cleaners think. That's business.
It may likely mean less frequent contracts, but new buildings are being put up all the time, so I doubt there's likely to be a shortage of work in the near future!
But lets work with progress, not against it!
Silly