Vanilla Skyrim is an especially annoying specimen in this category, because it has this weird "S curve". With low levels most enemies are way stronger than you

Vanilla Skyrim is an especially annoying specimen in this category, because it has this weird "S curve". With low levels most enemies are way stronger than you (ok, that's good, a level 5 player shouldn't be able to defeat city guards, for example), then there is a "growth phase" up to ~level 40-70ish (depending on play style) where the player is on par or better than NPCs, and after that the player's abilities level off and NPCs continue to grow stronger, so a high level player has a hard time again against NPCs of a class that she could previously defeat easily. Which makes no sense at all. Luckily for Skyrim the game thrives on mods anyway.