If anyone don't understand this basic thing such as budgeting then they should not be in business or have anything to do with finance. OP you did a good job but have honestly post like this are basic, this type of post will have a good fitting for beginners and help. This is a vast forum and the economy board of the forum talking about very basic thing like this that is obvious as day light is a bit cringe.
However, budgeting can be learned if there is willingness to learn.
So I don't see any reason that it will be a barrier if you want to build a business or anything that pertains to money management. Real-life experiences will serve as the best teacher, and your own mistakes at first will leave you a big lesson on how important budgeting is, and how it should be done properly and organized.