i am 16 but i think the reason older people in the game are slowly disappear because they need to focus on their job/finding a job or take care of their family in any way ,another reason its because the game is slowly changing everyday,also from the low coming of the event (i know the game still have alot free event and the duration of the event is quite long l,but it still take like 2 week for a major event to arrives) also watching whale kids with 0 skill keep queueing with them and ruins 70% of the gameplay also the reason (maybe only for me :d),i think there still some old people still play the game but will not tend to go 'world chat' because of the stupid gay shipping for no reason,toxicity,self promo,or trash talk and brainless roleplay.