People make fun of Bill Gates because he doesn't know the price of everyday items. However, here's the point they miss. When you develop enough margin in your life (the difference between what you make and what it costs you to live), you don't have to watch that quite as closely. For instance, I couldn't tell you what the price of gas is at the pump when I'm filling up. Why? We live off of no more than 50-70% of what we make. So if its a couple of pennies higher or lower per gallon, it doesn't affect my lifestyle BECAUSE I've been shrewd enough over time to work our expenses down and income to create that margin which works as a protective moat around your life. It's stewardship. https://www.usatoday.com/story/tech/talkingtech/2018/02/22/bill-gates-pretty-bad-guessing-grocery-prices-evidenced-his-appearance-ellen/362322002/
Trading seems fun, exciting, exhilarating, etc. so it has a lot of draw to it. And many people won't dig deeper than the euphoric emotion that they feel. However, trading is MUCH harder than investing. And much of the industry is bent towards getting you to trade rather than invest.