I think nobles are allowed to commerce but with the specific social standing. Nobles should only sell stuffs to fellow nobles. But as far as I remember Duchess Vandenberg is only a co-owner? All her ideas are only executed but not with the use of her name. I guess it would really be a problem....I think? Just an opinion.
Yeah I think that could be a problem too
We only need to wait for more explanation with the next chapter !!
I'm really excited about the next chapter tho...
If I'm not wrong in that time nobles weren't allowed to do any commerce
So maybe the prince is right to a certain point?
But I'm not sure it will be the argument he will choose to use ╮(￣▽￣)╭