More room.
I was on a SW flight once where an elderly gentleman and his wife preboarded. He used a cane, and she had a walker. So, they board before everyone else. I had A22, with no business class people in 1-15. So, only 7 or so ahead of me. The really funny thing is that the people that had A16-20 were flying together and headed right to those exit row seats. Well....what do they find??? Than elderly gentleman and his wife sitting in two of the exit row seats. The FA was 'explaining' to this man that he wasn't allowed to sit there since he had to be able to carry out certain jobs in an emergency. He said he would have no problem with this, and neither would his wife. The FA then pointed out that since they had preboaded, with what were supposed to be medical issues, they were not consindered able to fulfill those duties. This guy just continued arguing that they were capable. The FA told them that if they didn't get up and move to other, non-exit row seats, she would call security and they would be removed from the plane. Well, that got them moving. Then, that group took the vacated seats.
Amazing to see how some think they can get away with 'stuff'.