Oh Sweet thanks for letting me now.
I did stay in the USA many years ago but I don't remember having an ESTA so maybe its a new-ish thing - post 2000's..and good to know because I intend on traveling next year.
Think it would be safe for a middle aged white girl (OMG I can't just believe that I called myself middle aged. How RUDE! (but unfortunately a bit true...😭...) to travel through El Salvador herself?