> DEI trains people to be aware of those feeling and thoughts and double-check them. Most people don't want to make decisions in that way and appreciate the training.

Exactly this. It's all about awareness.

IMO companies that enforce quotas are not really trying to fix the problem but just forcing the numbers to look good. Because quotas are not solving the mindset that causes this. It's a quick fix. Trainings and workshops are hard work but they actually improve people's self-awareness over time.