Why rules and laws change in time - research paper?

I have to come up with reasons for why rules and laws change in time, including old rules/laws that are starting to lose their value, and new rules/laws, both formal and informal.

I'd really appreciate it if someone could help me out, especially with the first one! I'm not looking for someone to do my homework for me, I just need someone to help me think, cause I've got nothing!

(Oh, and sorry if there's lots of spelling mistakes in here, I'm stressing out and English is not my first language.)

Good afternoon.

So, why do you think laws/rules change as time goes on? Do you believe that a law should be enforced even if circumstances change? I believe that is the foundation that the essay requires. What ideas do you have so far?

Regards,
Gloria
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