Lufthansa has a true first class. All these American first class seats are just like premium economy. It is a huge scam. But a Lufthansa and Air France are two great example of a proper first class flight. Air France only has four first class seats in the whole plane.
There's also premium economy. On my flight back from Japan I did premium economy because reg economy was so horrible on the way out. The aisles are only 2 seats deep instead of 3, and your seat reclines more, though not all the way. Meal service is better, but you do have to use the regular economy toilets.
Just because a person don't get a first class ticket does mean they are poor maybe they have the money n choose economy cause it's ridiculous what they charge for a ticket road tripping is better IMO
I did business class in British Airlines and it was very private. I was able to recline all the way back, had a sliding door that blocked me off from the walkway and a door between the person on the other side.Great experience