Do not forget that many of those who are driven by their emotions are people who are inexperienced, but (repetition & learning) makes them less effective.
In addition, there are trading bots and other automated methods that reduce the impact of those psychological factors.
Also, the knowledge that even if your trades were to fail and enter a long and deep streak of failing, you're still protected by the fact that each trade was set at a stop loss allowing you to lose very small amounts of capital. Easiest done at non-leveraged trading, and conservative losses that'll mean even if you were to lose 10 in a row, you'd get off with 10% capital loss (for example).
People fear when they've risked a lot. Over-exposed on margins and taking risks beyond their ability to absorb it.
So agree. Leave everything to bots (entry and exit) but also set them up with conservative strategies that let you sleep, knowing that even in worst-case scenarios, you're okay.