you do not need a holy grail to be profitable. a holy grail is 100% win or so i have i have assumed. most profitable traders have win ratio of not more than 60%,if public literature on the subject is to be believed. if you believe that traders who are consistently profitable have the holy grail then the holy grail does exist. it is possible to be consistently profitable by reading the market correctly because no price action takes place without warning;
i think it is true. an account manager can simply run a database search in a few seconds to list all profitable traders. I am surprised if the account manager has no interests peeking into how the trader did.
Funny, I have been pondering this question more and more as I am now in my late 40s. I've had a creative burst in the past 5 years and have come up with a collection of 'holy grail-ish' systems that I continue to expand and build out. With all the countless hours I've spent designing/coding this stuff it would be really tragic if I died without passing it on. When I approach retirement in my 60s I plan to have everything 100% automated and turnkey (like click one button and out comes the daily tradelist). At that point I will hand it to my kids if they have any interest. If not I can sell it to an investment firm and just take the cash.
If you want your kids to be interested, they won't be interested when you're about to die and they have their own life. Interest them from now. Talk to them about what excites you. My son often sits with me as I explain what I'm doing, just did it this morning as I let him skip the last day of school before winter break.
Didn't work in my household. Gave them lessons. None interested. So I opened a trading account for each, put some $ in and told them to trade. After a short period they all took the $ out and spent on stuffs.