I think ‘Why are there laws of nature’ is an intriguing question. One thing is for sure - we don’t know the answer today. We could ask if it is conceivable that we ever will. Well, ever is a long time (if we don’t blow our selves up with nuclear weapons or destroy ourselves by AGW, that is). I’m not sure if it is completely impossible we might know one far off day. It seems that we may have reached the end of the chain of ever smaller or more fundamental particles. There does not - AFAIK - seem to be any internal structure to electrons, or quarks. We may not be doomed to discover end endless chain of ever smaller and more fundamental particles.
The only possible reasons for the laws of nature I can imagine would be some necessary self-reinforcing truth, something like a physical axiom, a property of reality that must be be true. Not so much a theory of everything, but an axiom of everything.
Of course that is just words. Human brains (or at least my human brain) seems very reluctant to give up the idea that everything has an anteceent cause, or a reason. But can the chain of antecedents be truly infinite? If there are no infinities in nature, it would necessitate an end point somewhere. Can we really go a million years - or a billion years - just finding more and more levels of antecedent? Or would we eventually find a non-supernatural ‘causa sui’?
Of course there is always the cheat of invoking the anthropic principle - if there weren’t laws of nature, we would not be here to discuss them! But I’ve never liked the AP - it always seems like a ‘clever dick’ answer rather than a proper explanation of anything…
But I think we can’t answer the question posed right now. Come back in a million years.