But remember if you go solo you get all the xp. That adds up pretty quick, and if you are grinding +-8 hours or more a day you can get really powerful and take the same risks. That said in cannon kirito did not take party quests very often and hardly ever solo.
Just look at the stat gain he got from avoiding everyone. If he decided to stay out in front he will level really fast.
Just look at the stat gain he got from avoiding everyone. If he decided to stay out in front he will level really fast.