As an old man, I can testify that one of the signs of aging among women is inability to open jars. That’s why old women need an old man.
It is a sort of mythical indicator like on tv a woman will say “a man’s been here, the toilet seat is up”
Hillary was faking her youth
I have several elderly friends. They don't show there youth by opening jars. They get out on the dance floor and boot-scoot or cha cha.