One of the problems of being an investor is that one will be paying commissions of many trading and investment transactions.Those are usually brokerage fees. They are very tiny but they do sting like bees over a long period of time because they can grow big.
Usually the more sophisticated investors do take measures to avoid paying too much in commissions. The lesser one can pay the better. Believe it or not, small investors who do not have large investment account are surprisingly happy to spend a huge proportion on their investment account in commissions.
One would think that minor investors would have been the one looking to reduce how much they pay in commissions but that is not the case.