(Random Thoughts) Overpowered Main Characters (Patreon)

Sometimes I worry I might end up making my main characters too overpowered... then I read other things, and realize I'm probably doing fine. I think mine generally grow into their power at a reasonable rate... At the very least, none of them can destroy a city at 20 years old. Why does anyone need to be that strong at 20 when they end up with literally unlimited lifespans... *coughs* Well, enough of that.