And teach your kids nonsense and they will grow up believing in nonsense.
There are of course certain things we just don't know by observation. One of them being what happens after death. There are also somethings we don't understand that sometimes get written off as superstition, but some things we follow anyway because they work. Hell is not a picking the right/wrong door (door A-right god, door B-wrong god, door-C I don't know what/if god, D-no god). It's about violating a law.
Murphy's Law we can generally write off as coincidental. I can accept that the light doesn't turn red because I'm in a hurry. Or green because I'm trying to waste time. It sure seems like it at times, but a lot these things can be written off as false perceptions.
A lot of people, religious or not, still seem to follow the principle of what eastern religion calls karma, we Christians call reaping what you sow, etc. I've heard of non-religious folk giving because they seem to prosper more when doing so.
That being said, suppose a loved one told you that when they were stingy with money, they struggled financially. When they started practicing giving, they found themselves prospering financially.
Would you tell that person what they were doing was ridiculous? That their financial state does not depend on their charity?