The need to assess the risk of a transaction is not an obvious thing for most traders. Why count it at all, if everything is going well anyway.
Again, risk calculation is a sign that you have a trading system. In addition, risk calculation is psychologically necessary, because it forces you to choose the entry point more carefully. If you set a goal to earn 1%, this is one strategy, and if 3%, then such a situation still needs to be found, not every transaction will give such a percentage. I.e., calculating the risk, you exclude a lot of unprofitable scenarios in advance, and also develop the right thinking and a goal to make a profit of at least 1:3. Setting the profit target to 1:10 makes the task of drawing up a deal plan even more difficult. Here you already need to be a virtuoso.