I once sat on the front seat on the bus which is sort of raised like a high chair. It was fairly busy and an elderly lady got on. A person near me glared at me then asked if I was going to give up my seat. The actual priority seats a metre away had 1 or 2 free, and I don't think a high chair is really the best fit for an elderly person to get into but sure, get on your high horse...
Yeah I like those seats and you are right that they are not priority seats yet for some reason people think they are