We have different bots, some are just automation that is based on your configuration or input. Just take for example what @mk4 said above, which you can customize your own bot which means, it will depend on what you want to happen, when to buy, when to sell, when to take profit, etc.
So it means, before you do that, you make sure you are a profitable trader with proper knowledge then you can apply it by creating your bot so there will be automatuions.
Maybe the ones that he tested out are not the kind of bots you describe there? Because if it is, and he lacks in knowledge about trading, then it is not possible for him to run the bot. But I prefer that type of bot better because it is based on our own knowledge. It gives us more comfort than the other. I think some good traders will still prefer to do their trades manually.
There must be some kind of thrill that they can feel here and it's highly rewarding in their brain, other than the profit that they can get once they are successful. This can be a definition of full-time trading but it does not mean that they don't have a life anymore. It's still different from addiction.