I read the raws. MC is really foolish (he is a child, so that can be his excuse, but he is supposed to be from a noble family, and they supposedly get good training from childhood). The next things I mention all happen in the first ten chapters, so can't really be considered as spoiler.
He sold all the assets of his family for loaves of bread or small amounts of pocket change. He has a good teacher who helped him in his need, but he neither consults him about his doubts nor asks for advice. He is greedy and easily led into the plans of others who want to use him (the most stupid thing is he wanted to save up food, so he bought lots of bread with his first gold coin, and then was so surprised when the bread got spoiled after a few days. I mean, what do you expect- it's a perishable food- buy rice instead, or wheat, or corn- even foolishness should have its limits).