That should be the ideal. Respect the differences between the faiths and recognize them as valid as long as they do not extinguish theflame of unity. It is also a form of politeness, to honor his background. And besides, many of us are really quite comfortable sitting on the floor. Then the main door opens to the public at 4 sharp.
Folks tend to like to sit in silence.
The fourth aspect that some folks remark on is that in our meetings, the ladies and the gents sit on separate sides. This is another custom we borrow from the East, which is far more strict about interpersonal relations than we in the West are used to. Not all centers make that separation at public meetings, but Swami appreciates it, so we do it here at the L A Center for all meetings, public and private. We believe that by having the sexes sit separately during our brief meeting, we show God our willingness to not think of anything other than devotion during the meeting. Also, many find that sitting only with members of one's own gender serves to align vibrations unique to that gender.