Not just max level. Example
1. Joe: Hey John, lets play world of magic, im already level 14, its a fun game
John buy the game.
John: Hey im at xx city. im level 1. can we play together? no homo
Joe: Sure bro, wait a sec i go there
They meet each other and Joe lead the way to level 1 area
John: what your lv now?
John: can u gain exp in level 1 area?
Joe: Yes but not much
Joe help john leveling, and play as a tank. because level 1 mobs wont give serious damage to him.
John: wow there is so many mobs and other players also rely on u to tank the mob
joe: yeah haha
A moment later MVP monster, Medusa come and attack them.
john: wow there is boss monster in this map.
joe: i cant fight it, the boss level 99. lets run
Somehow, they are lucky, at the brink of death, a group of elite player have come and start attacking Medusa.
joe: wow heavensword, an elite group of max level player has come back to help, lets attack Medusa!
john: wow raid at level 1!!
they attack medusa together and get exp.
Joe: every map have max level boss, its the reason max level player to come back. they need to slay the boss to create legendary item