Can we take addon classes in more an easy way?

[Xyno]

I Really dont understand this now.

For example, you are a new player. You have read about the classes and choosed Astrologian, for example. You began to create a character and suddenly found out ,that you cant be an Astrologian, first you must waste a lot of time on playing by the class you dont like and only then you will be able to take the Astrologian and it will be not even 50 level, only 30. It means, that you must level up 50+30 levels but not 60. It is really stupid