Lol you'd think there's no need for it because you are unaware of the grave effects witchcraft has on people. If you've never experienced any attack then you'd of course think nothing of it. Other people need such laws for protection, do not disregard the law just because you have never been able to use it.
If the said culprits aren't the right ones then the people upholding the law are at fault. It means there needs to be a change in the mindset of people who are enforcing it. You can pray to God if you aren't able to talk to the people involved in order to help change things. Nothing is impossible with the Lord but we must still act on being part of the change we wish to see in the world.