The twins found it too hectic to live in Germany because they had very little privacy and wanted to find some kind of balance or normalcy in their lives. Here’s an episode where they discuss why they moved to L.A.
I actually think the main motive to them moving is quite sad. I am bittersweet about the moving, but the sunnyside is them feeling the creativity flow back in because I’ve had a dry spell in that sense. It’s the worst being a creative person and not being able to produce because of stress.