Coloring, of course, cannot be banned. You should not exclude its use for fine motor skills; this activity allows parents to get an extra half an hour of free time.

It is believed that the company The McLoughlin Brothers (en.wikipedia.org/wiki/McLoughlin_Brothers) invented the coloring books. They published a book called The Little Folks' Painting Book in collaboration with Kate Greenaway in 1880.

Wise Man Foolish Man Coloring Pages