This may not really have anything to do with table size but I had two coin tables in my pool room and they were never empty. What it was was the cost to play.
People often didn't like the clock ticking costing them money as they talked or went to the bathroom. It seemed hard to get the coin table players used to paying by the hour. In fact they hated it.
Nothing what so ever to do with the table size, just the cost to play. They would even say things like, "Why do we have to pay for four players when only one shoots at a time"? "Why do I pay to sit in a chair"?
Was a hard question to answer from their logical stand point. I later created a new pricing system getting rid of the per player pricing. I just went to a single player price and then two or more price. In other words, over two it was a flat rate.
After that guy's would let the girls play. Before, they sat them in the chair to watch not wanting to pay for them to play.
People liked it, I had full tables every night. They stayed longer, drank and spent more , my bottom line went up while actually lowering my price. Always had a waiting list, so very little down time in prime hours.
It's awful looking out at 7 or 8 empty tables waiting for another wave of business to arrive.
I know this was off subject but may mean something. I think the real goal, is to develope their interest with the hope they will become life long players.
Where they play or how they play may not be the most important thing. They will buy cues, spend money in the venue of their choice and a certain number will become serious players.
Or for that matter just serious rail birds and recreational players. But the important thing is, in their own way they continuing what has been a great sport a very, very long time.