Depends on what your worst memory is. Sure many bad memories are learning experiences, probably shouldn’t erase those. But others are just traumatic and cause psychological problems. If your worst memory is seeing somebody get run over by a car all gruesome and gross get rid of it. Nothing to be gained by keeping those images.
I’m getting to the age where it’s hard to remember anything. Last thing I need is a pill to forget. Wake me when they come up with its opposite!