The reason in this is generally there are actually 38 numbers on the wheel: 1-36 and 0 and double zero.
In fact, single decision the user ever to be able to make is who to bet for and exactly how much. If charting really worked, they ban it, not sponsor it. https://Medium.com/@webbaccarat369-6/%E0%B9%80%E0%B8%A5%E0%B9%88%E0%B8%99%E0%B8%9A%E0%B8%B2%E0%B8%84%E0%B8%B2%E0%B8%A3%E0%B9%88%E0%B8%B2%E0%B8%AD%E0%B8%AD%E0%B8%99%E0%B9%84%E0%B8%A5%E0%B8%99%E0%B9%8C%E0%B8%A2%E0%B8%B1%E0%B8%87%E0%B9%84%E0%B8%87%E0%B9%83%E0%B8%AB%E0%B9%89%E0%B8%8A%E0%B8%99%E0%B8%B0%E0%B8%97%E0%B8%B8%E0%B8%81%E0%B9%80%E0%B8%81%E0%B8%A1-8907be76bd10