Another thing you may not be aware of, Mapl3Mag3il3... if your class is equal to your character level, you can always change class and try out something new. In Eden Eternal, your character can be any and ALL classes at once! You don't have to be a mage/warrior/thief forever! Instead of wasting the class EXP you could be getting while leveling up your "main level", switch to a class you haven't played yet... or haven't played in awhile. It makes the game more diverse and interesting.
Also, when looking for groups later on (level 50+), it's better if you can fill more than just ONE role. Like, if you play warrior... and never play anything else, or aren't very good at tanking, you're not as likely to find groups as if you play warrior AND you play blade dancer... or cleric... or illusionist... or anything else.
Variety! It is the spice of life!