[edited out]
Well, I really think you missed my point mate, was pointing at a beginner who's mind is made up on trading, so to make sure he does the right thing first by accumulating Bitcoin first until his target is met before thinking of trading, I would introduce a mindset of accumulation as primary and trading as secondary. Just a calculated plan to get such a person to have his investment in Bitcoin first in order to secure his future. Most times while investing in Bitcoin consistently such person loses interest in trading and remain focused on his investment. This is just a mental hack to direct a new investor who previously had intention of trading that there's a better future in investment and it should be considered a priority.
If you deal with people so much, you'll know that a direct refusal sometimes triggers resistance in them, so identifying with their intentions to a limited extent makes them more comfortable and most times at the long run, they get comfortable with your Idea and forgo the wrong motive they had earlier.
I think that there are some folks who no matter what are not going to be able to control their desires to trade or gamble, and so if they cannot resist, then at least if they might be able to limit their trading to no more than 10% of the size of their bitcoin holdings at least they might be making progress in that direction, yet one of the problems with trading and/or gambling is that most of the time, they have no abilities to control themselves or to limit themselves, whether they are winning or losing the still want to end up putting more and more money into it.. so it can be quite difficult to overcome the gambling tendencies and to realize that trading/gambling is a losing game, especially as compared to how great bitcoin has been and is likely going to continue to be in the long term.. so the longer that anyone is comparing the performance of trader/gamblers versus investing into bitcoin the greater disparities and the more rare that any trader/gambler would have had been able to beat a bitcoin investor who had mostly been focusing on accumulating bitcoin through buying and otherwise holding (which means NOT selling BTC for the purpose of trying to buy back cheaper).
People who trade mostly find themselves unable to control their trading mentality and habits either because they want to recover losses they recorded in previous trades or they are not satisfied with the profits they made and want to trade more if they can be lucky and make more profits and this is one of the reasons why they are difficult to change their mindset even when they are losing. Trading is associated with some kind of addiction which a trader may not realize on time till they have run into deep losses.
There is no comparison between a trader and an investor because they difference is very clear because the investor is always in control of their investment in Bitcoin since it will remain in their custody for a long time but for a trader, at some point they will gain and the next time they are already losing and that is how it also affects their emotions.