What's One "Old Game" Mechanic That You Don't Miss?

[Ortho]

Lack of an in-game tutorial and/or an explanation of what the game mechanics actually are.

I really want to get into Morrowind but I can't because I don't know what any of my stat increases do. Or even how useful they are. E.g. what the heck does Mysticism do and why should I take it?

Tangentially related to the above: frustratingly obtuse puzzles that are necessary for progression. In Ocarina of Time, there's a Goron rolling around that you have to talk to in order to enter the Fire Temple, but the solution isn't to talk to him but rather to chuck a bomb at him and then talk to him. How exactly were we supposed to figure that one out?