Teenage years/University = no game needed, just popularity and some balls. Girls are basically throwing themselves at you. If you need game here that means u r socially awkward or extremely repulsive.
20's after graduation = night scene, a little game skills/knowledge, decent look, good fashion sense, some swag, some pocket change, some popularity and an insurmountable of confidence. You'll get laid.
Early 30's after being somewhat successful in life = 30% night scene with 70% day game, by now you realise that the majority of women are not inside pubs, clubs etc and most of them are walking about during the day. Here's where ur game is being put into practise, which is an accumulation of knowledge you gained from ur teens through ur 20's which isn't really much but a good foundation to build on.
Mid 30's = 95% day game and 5% night scene. Here's where ur true value as a man comes into play, again an accumulation from teens up to now and basically fine tuning ur skills/knowledge.
40's onwards = 100% day game, here's where you're at ur very best as a man, been through the mud, survived and thrived. And if u r still doing night scenes to pick girls up, you're probably a socially awkward man or been brainwashed by the feminine imperative that ur game svcks.