Most people don’t know scientific units or the difference between the two words. Especially with electricity. When we lose power, it means the electricity is turned off.

Yes, absolutely. People will frequently use either term interchangeably when talking about electricity. It’s less likely in a scientific or engineering context of course, but it occasionally does happen.

Yes, people frequently get it wrong and when they are dismissive about it, they are demonstrating their lack of willingness to educate themselves.

It may seem like semantics to quibble over technical language but if I ask someone to pass me a saucepan, when I want to use a frying pan, then it’s pretty stupid of me, isn’t it?