Subrace Question

[Kanjutsu]

Hello!

I have a quick question about Subrace.

Me and my brother have player a coupes of sector but we never see the new subrace from the expansion appear except when we unlocked them.

What I mean is in our couples of recent sector we have NEVER seen a single subrace appear except for Ancients.

Is this normal?

I really want to meet Barbarians or others Subrace and have more diversity sadly it seems I'm either not understanding something or the subrace are only there to be unlocked and then they don't appear?

Thanks for any info on the subject.