About reassigning self in classes

[Jens]

Yes, this:

@jrose

So it's left out of the language to avoid introducing a point of confusion.

answers the first question:

@Jens

Why is it important to prevent reassigning self in classes?

But not the second:

@Jens

Why is it not prevented to (even accidentally) do so via a protocol's default implementation?

If the following is your answer to that second question:

@Lantua

Reassigning self in protocol doesn’t seem to have as many interpretation.

Then I can't see what you mean by that.