Rub A Dub, I hear you! It can take all day just managing the TV for my Mom.
The Alexa/Echo will have to learn their voices, so there's a bit of a learning period, but my Mom can start her music every day, and ask for news, weather, etc., without my help. You can also control it indirectly via the app. This helps when you need to turn the volume down, etc. Lots of music to listen to (Amazon music or Pandora) which is a big help too. You can also do video calls with others who have one.
For the JW stuff, you'll need to enable it (maybe via the app, not sure). It will read the Bible to them too.