I have a problem with people even having to use part of their Bitcoin holdings to trade. I believe in separation of concerns and precision which spurs effectiveness.
I think if you must trade, trading wallets should be handled separately and holding wallets should be treated separately. Your accumulation amount for your holdings and your portfolio should not be tampered with, then if you must trade, plan a different fund buildup for it which shouldn't in anyway be intertwined with your Bitcoin holdings, your consistency in buying Bitcoin or your buying amounts.
When I say 10% of your Holding, I do not particularly mean selling that you’ll have to liquidate 10% of your Bitcoin Portfolio and/or diversifying it to trading. What I mean is that, whatever you must use in trading, it should not exceed 10% of your total Bitcoin holding, so I’m not saying one must have to sell off 10% of their Bitcoin holding,
I reinstate the belief that involvement onto trading during your accumulation journey isn't the best practice since it may lead to divided focus, so I believe your accumulation journey would be more effective when you focus on Bitcoin accumulation alone and divert the money intended for trading to buying Bitcoin to increase your aggressiveness.
I share the same view with you on this one, but then again, there are those who actually cannot resist the temptation of trading, and we cannot pretend that those people do not exist because they actually do and it is important to adequately educate these set of individuals to prevent them from making some grievous financial mistake that may likely affect their accumulation process. Although there are also those that actually do make profit from trading ( not that I’m promoting trading/gambling or advising people to go into it) and that is why some investors are often inquisitive and eager to try it out and some of them, regardless of how much you try to dissuade them, they’d still want to give it a try.
And the only way some of these investors can be convinced that trading is extremely dangerous and risky and often unprofitable is when they give it a try and then experience the losses for themselves, and that’s why it’s advised to use not more than 10% of their holdings to venture into trading, so when/if they lose it, they wouldn’t feel that much of the impact, and then they can concentrate more on their accumulation.