It's a very strange argument to make: there exist some photos therefore other photos may not be colorized!
Seeing that a "neat tool" exists and using that "neat tool" are two diffrent things. Google Glass was neat, too.
But today, only 1% of people has black-and-white childhood photos. I just makes me want to argue when people pretend that it is still needed as much as in 1995 :D
I was also arguing with my friends about buying laptops with an optical drive ten years ago :D
Just because you don't want to use a tool, it doesn't mean others also won't.