[ErroneousBosh]

> They can describe what they want in natural language ("show me all active users who registerd this year"), but translating that into correct, optimized sql requires at least familiarity, and sometimes expertise

They can describe what they want in natural language only if they have sufficient familiarity and expertise.

If you think that being fluent in a language means you can ask clear and coherent questions in that language, I'd like to invite you to a couple of MS Teams calls this week.