This is a continuation of:
The same idea is behind this one, though. Don't think too much behind the idea and try not to run from too many fights if you can. If anything, seeing the fight through to the end helps to make sure you gather the Grade items from each enemy, increases your Leaf and DP early on, and helps you to level up so greater threats later on aren't as bad. (Then again, you could still play on EASY to make the fights go even faster.)