Why did George Jetson like to make excuses on The Jetsons?

[Hawkee]

I noticed that on today's The Jetsons episode that George Jetson always liked to make excuses not to do things and I wondered if this became a habit of his? In one scene when Mr. Spacely wanted George to attend the football game with him George faked being sick but went with him anyway and when Jane had to attend the meeting with Elroy and Judy's teachers George should've told Jane that he was busy and couldn't go with her. And when the car ran out of gas and George was late for work he could've told Jane the real truth instead of lying to her. Was it a habit that George Jetson could make excuses not to do things?
Bestie