Do not expect stats to go into the 20-30 range. The hard cap on stats for player characters, whether level 1 or level 20, without certain very specific, unique magic items, for player characters, is 20. At very, very most, certain classes can get some of their physical stats up to 24 at level 20, but there exist no such perks for casting stats.
That said, I do agree that requiring you to prepare your spells when you level up is not necessary and adds unneeded bloat to the level up screen that they could be using to give us actually valuable information about the game and what we're doing. I would support not being required to prepare your spells at level up, but because it is unnecessary, unhelpful and wasteful of resources... not because it is an issue or has bugs - it doesn't. If they must leave it in, I would definitely support them fixing it up so that preparing the maximum amount that you can is not required, since you aren't ever required to have your maximum number of spells prepared at any other point.
Completely agree. I would still recommend they remove prepared spell pre-requisite from the leveling screen, as it is very unnecessary (bloated as you say) as spells can be prepared at any point in the game, and as prepared spells have nothing to do with leveling.
