What makes this analogy unsound?

a) societies do have control over the laws they make.
b) controlling personal car us take4s minimal effort
c) rules and laws always have some exception

The analogy is unsound because it compares the ease of controlling personal car use to the control that societies have over the laws they make, which are on very different scales and levels of complexity. Additionally, the analogy does not account for the fact that societies may face various constraints, influences, and challenges in the process of making laws, which can make it much more difficult than simply controlling personal car use.