I can say about Russia, where I live. As in Germany we don’t have any license system for engineers. When you complete an engineering education you get a degree of Diploma engineer. That is absolutely enough for working. I think strict license system is mainly American practice.
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Why? In my opinion the unbraced length would not be changed = 3.5 m. And the moment in the base of the column depends only on this. Diagonal member from the base of the column to the bottom of the brace would be much better.