Why would a aurthor chose to write in third person rather than first

To give more detail on what the characters point of views are instead of always being one sided int the story

Explanation:

what is a theme?

ans: the implicit idea of a written work of literature is called a theme.

so, the only theme of "birdfoot's grampa" by joseph bruchuc is that as a human being one should always remember the value of every life on earth.

the grampa is stopping the car again and again to save those little toads from washing away in the heavy rain is an act of kindness and humanity.