Well, apparently they were back then and still are today for people of all ages. People are making the adult coloring books bestsellers on Amazon! At the time of this writing, eight of the top twenty books on the bestsellers list, are coloring books for adults. There must be something behind this recent growth in interest.
I know that in this era, computers and gadgets are really booming and bombarding every home. The majority of the parents cant catch up with the inclination but through uncomplicated things like coloring books, for sure, kids can have a superb time with their parents. There are also free coloring online materials and games that you can make use of while bonding with your kids.