Why do you assume that “getting more chairs into the game” has anything to do having more boys or the like?
Perhaps those responsible for setting up the chairs should stop limiting their furniture suppliers to companies such as BMG, Brisk and other similar suppliers. Many smaller niche suppliers exist, but have a difficult time getting their products into the general market.
Just last week a fine bachur who gives my name as a reference was turned down by the prospective shidduch because “if he was really such a good bachur he would be in BMG”. This is not to say this is the fault of shadchanim, but whoever and whatever created this lust for making sure you live up to the next perons expectations. If shadchanim would promote these boys/girls and parents would not have the attitude expressed above, perhaps we would have less older singles.