One major thing I know can't be taught is the psychological aspect of trading.
It can be taught as how I view things since we do have some psychologist and human behavioral science who can teach you this things. I think the better thing to say here is even if you teach/reminds them to control their emotions while trading it will still really depend on him/her doing his part. And for newbies being carried around their emotions I don't blame them since the crypto market is really a volatile market for any newbies to enter in their first time around, I know that the price action is much faster for others to have a proper decision that's why the best thing to handle this is to have an entry and exit strategy as well as a cut loss strategy at place and be set in stone so no matter what will happen as long as he/she is contended with his plan he/she can keep his emotions intact.
