AM is here to stay for at least a few more decades. In the US it’s a lot more scarce to find AM broadcasts that aren’t either political or religious (often extremely so) because of the market for renting airtime and the longer reach than FM.

But AM is still bread and butter for South/Central America and Africa. Not sure how much it is used in Southeast Asia but it wouldn’t surprise me if it was still very popular there too.

Eventually it’ll be gone due to the inevitable March of technology, but it has plenty of life left in it.