I agree with you that holding is the most important thing in Bitcoin investment however not short term holding or trading but long term holding if we master the act of long term holding we will become successful investors, the reason why I decided to make it clear is because of newbies if one just say holding some set of newbie may think about short term holding or trading and which is very risky.
The only way to reduce the risk of losing in Bitcoin investment as an investor is by engaging in long term Bitcoin investment, holding your Bitcoin for long will help you relax and stop panicking, those who are into Long term holding Bitcoin volatility won't be something they should be afraid of because the longer you hold Bitcoin the more successful you may become.
Any newbie who categorises short-term holding and trading as the same thing has a long way to go as they need to learn the difference and make a decision on which one they want to do and which one will favour them.
As someone more experienced than a newbie in bitcoin investment, you should know that trading is not the right thing for a newbie to adopt because he lacks the knowledge and experience that will help him become successful in it. So saying that a newbie should decide whether to invest in bitcoin for short-term profit or long-term profit is wrong because you know too well that if a newbie invests in bitcoin for short-term profit, he will fail, which might give him the wrong impression about bitcoin. You should have made it clear to a newbie that investing in bitcoin for short-term profit will be of no use or good to him, and he should adopt long-term investment in bitcoin so that in the long run he will become successful with his bitcoin investment, and he should invest in bitcoin with the money he will not be needing for 4-10 years or more, which will allow him not to find it difficult to sort out his daily expenses since he will be using the money that is not allocated to solve anything in his life for 4-10 years or more.
You are actually right, short term investment wich can also be seen as trading is not really advisable because no one can tell what the market will look like in that short interval of time but we can't really tell for sure if there is going to be a profit or not that is to say that there may be profit in that short period and there may not also be a profit in that same period of time, so the best is to hold for a long period of time and that's the only way one can enjoy his or her investment.
I think some people have to learn in a hard way before they will understand how things actually work and also know the right approach to..., someone can only be a failure when he or she stop trying so if they go into short term investment and peradventure they failed, some will change their method of investment and hopefully they will succeed but having wrong impression about it, is an impression that person is/going to be a failure, don't give up for what you know it's valuable simply because you failed by going the wrong way.