“Unless you think only people with 5 year old kids move to Lakewood, the fact that every year a whole bunch of new primary classes open, more than older grades, should tip you off as to what’s going on.”
I don’t think it is unreasonable to assume that young couples with no children are moving into Lakewood (and then having children) at a far greater pace than couples with 10, 15 or 18 year old children. Certainly there is a significantly heavier proportion of new Lakewood residents being newlyweds or otherwise younger couples than couples with older children moving into Lakewood from elsewhere.