[bbatha]

In addition to what other commenters have noted about difficulty eating enough quantity, this is not a commercial fruit and thus no standards for what you'll get. There are a variety of on-going breeding programs for commercial pawpaws. This is just one more item on the checklist to successfully selectively breed out. If you see pawpaws in the supermarket its unlikely current studies will apply to it. Breeders understanding how to breed for and against the annonacin content is actually very high on their list of priorities, not for eating, but the high annonacin makes pawpaws an excellent deer and mosquito repellent, and is being studied as a source for chemo-therapy and other drugs. https://pubmed.ncbi.nlm.nih.gov/18598079/ I suspect these will be the first commercial use cases for the pawpaw as they use the trees bark, leaves, and skins of the fruit and not the fragile flesh.