So why are surgeons and pediatric oncologists allowed to cure cancer in this country but adult oncologists are not?
Sometimes conventional cancer treatments work, and patients go into complete remission, both children and adults. However, those kinds of results are somewhat miraculous, and not duplicatable on a routine basis.
If someone were to come up with a treatment protocol that produced complete remission 100% of the time, and they broadly promoted that fact, they'd be crushed by the medical industrial complex.