so... in pnp, all classes can dodge, dash, disengage, it isn't a rogue thing, rogues just do it as a bonus action from level 2. This is exactly as it's implemented in the game, so not sure where the issue is there.
everyone can make attacks of opportunity in pnp too, so it's not incorrect ot have it the way it is either.
Reaction spells are a big thing that is missing right now though - shield for example is a wizards bread and butter, especially at higher levels. Same goes for counterspell. So ideally we see those eventually, but the only way they'll work will be for more intrusive behaviours to be added where events pause the game to allow you to use a reaction. Or you need to have something similar to attack of opportunity on the side and maybe you can reorder them, like if shield is placed higher than attack of opportunity, it'll use shield the first time you're attacked etc.
scrolls, yeah i agree, they should only be usable by characters who have the spell on their spell list. And require the appropriate caster check to use if the character isn't high enough level yet.
