EVE online suffers from increasingly older demographics, looks like not many new players are coming to the game. Its like older it gets, its mostly the same players playing it, and not many new are added.
The line have shifted, the highest point in the graph indicates increasingly older players as the game gets older. It really reflects the current developed countries demographics, which majority of players come from.
With demographics shrinking, in result the amount of players will also shrink, the old ones will eventually die, and new ones will be too few.
Maybe EVE needs to promote traditional christian values, or more widely, conservative? No contraception, woman in kitchen and working around kids at home, only one sexual partner for whole life etc. Family arranged marriage?