What if multiple apprentices were the norm in the Order?

[DIREWOLF75]

Even if apprentices are easy to find, there is still the matter of your duty to train them. You owe them 1 season per year for 15 years, so the limit is 4 apprentices at one time.

Excuse me, say again? Even with zero changes in rules, you can train as many apprentices as you want all at once, as long as you dont train them in Arts. There are no limits on how many you can train in Magic Theory for example.

Now however, the basic premise was:

To be specific, say it still has to be one on one to open an apprentice's arts, but to actually teach an art can, multiple students can be taught. (To whatever the normal limit is, I think your Leadership or Teach score?)

Which means that the only limit is really based on how many apprentices that you can open the arts for without failing to provide the 1 season per year minimum teaching.
And since there´s actually nothing to say that you cant pay others to assist with that, the max number of apprentices can potentially get rather high.

I've been thinking, what if Wizards of the Order of Hermes have always been able to train multiple apprentices, how would this change the OoH?

We HAVE played with this option. We set the limit of number of people you can teach Arts to Leadership& Teaching score.
The result was 20-50% more powerful magi when they ended their apprenticeship and little else. We didnt make it easier to FIND apprentices however, it was really just that things got more specialised with order members that was interested were used for educating new apprentices to a much greater degree.