Follower of the Way
Out of curiosity, are you wanting these restrictions as prescriptive or descriptive ones?Make magic difficult again.
The in lore restrictions for things like paladins and wizards were what made the setting interesting and not generic, and they should be maintained.
I haven’t read the books in ages, but social structures that interact with some class mechanics were more or less core to the original setting.
That is, a descriptive restriction is one where "if you want to play a paladin (or w/e), your character will be made to meet this requirement," whereas a prescriptive one is "unless your character meets this requirement beforehand, you won't be allowed to take this option." In Baldur's Gate and Icewind Dale and the like, you see an example of the former where Paladin characters, who are required to have a minimum 17 Cha, will be brought up to 17 Cha if they don't meet that minimum with their rolled stats. Whereas, as I understood it, many actual 2e players ran it as a prescriptive restriction: if you didn't roll a 17 Cha, you simply weren't allowed to play a Paladin, period.
I'd be okay with descriptive restrictions on these things, but prescriptive ones are kinda meh for me. (Obviously this is a + thread and a personal-opinion thing, so I'm not saying you aren't allowed to want this. Just sharing my own feelings on the subject.)