Fanaelialae
Legend
I think that's probably a good approach for front loaded classes.Is front-loading a lot less trouble without multi-classing being a thing?
I've wondered about how it would work if there were one or two "apprentice levels" below 1st level that someone would take if multi-classing (maybe you need one of them if in a similar class and two if in a very different class?). Would that would be great for a more realistic skill training system but be so harsh mechanics wise that lots of people wouldn't play them? And then I wonder if that would be an ok thing if you already had lots of classes filling the in-between roles (like Magus and the hybrid classes in PF1e) and lots of archetypes? (I'm assuming those that like finding the most powerful 1 or 2 level dips would really disagree).
I've dabbled with this myself in class design, where 1st level had a robust kit, but multiclassed characters would have to gain 3 levels to get the same package of abilities (Apprentice > Journeyman > 1st level).
I've seen other approaches. I don't recall the system but there's one with classes designed such that at 1st level you get a core feature that is really good and enhances your other abilities. Multi-classed characters get everything except for that core feature (such that they'll always be a lesser variant compared to someone who started as that class).