I totally agree with you because there is no amount of knowledge a newbie we have that he or she won't be drive or shaked by market fluctuation because they are still fresh to the game.
What do you think makes someone a newbie? It's mostly ignorance or lack of deep knowledge about something, if an individual in Bitcoin investment knows all it takes to invest and hold for a very long time, guy that person is no longer a newbie, because he has all the required knowledge to succeed.
So wether a person is just starting to invest in Bitcoin or not, he will never be shaken by market fluctuation when he knows it all on how Bitcoin operate generally.