Pennsylvania

Why can't Pennsylvania do early voting? You either have to wait in line on Election Day or follow confusing mail in stuff apparently what I hear from relatives. I have an 82-year-old aunt who does it by mail. I asked her how does she know her vote was received she said she doesn't. She doesn't use the internet at all. Is it sent first class or special or how? Apparently, it has to be postmarked by the 29th. And now their Supreme Court says one thing in a lower court is saying another thing. They need to get there shit cleared up because this is a must-win state for us.