Question

Why did jack begun find the story telling ritual a chore

Answer 1

Jack had begun to find the story telling ritual a chore because it had almost become a routine for him to frame a Roger-animal story to tell Jo and put her to bed. He had by now, run out of ideas for fresh stories.

Answer 2

Jack began to find the story telling ritual a chore because it had become a routine for Jack to make a Roger Skunk animal story so he could tell this story to Jo and put her to sleep in a bed.  

Jo was a four years daughter of Jack and Clare and for the last two years Jack who was a father of Jo used to tell her a bed time stories and it had become a ritual chore for him.

All of his stories were based on same character and events. He used a named Roger for his animal characters such as Roger squirrel, Roger fish and Roger Lion.