I don't think that it's normal for a Bitcoin investor to be emotional about his or her holdings, unless you are investing with an amount you can't do away with, but if you are investing with an amount you can afford to lose, bro nothing is making you emotional about your holdings
All investors are human, not robots or bots so human all have emotions and everyone is affected by human emotions. Difference is between people who can be more or less disciplined than others and have better or worse risk and capital management.
Those things are either well controlled or bad controlled that will decide those people reactions on a same market. You can have positive or negative emotion and feelings about the market but if you manage risk and capital well enough, and if you are disciplined enough, you will not either do FOMO purchase or panic sale. Because almost everything you do with your investment portfolio and decisions of purchases and sales are done very disciplined and less likely emotional affected.
I think that what barikui1 is trying to say is that it's not about not being a robot, it's more of investing with an amount you can afford to lose, even in trading, their is a popular saying, which says; trade with an amount you can afford to lose, because once you trade or invest with an amount you can afford to lose, you wouldn't be bothered that much if the investment or trade is not going your way, and your emotions will surely be in a good state, so I share the same sentiment with him, if you invest with an amount you can afford to lose, you certainly wouldn't be emotional about your holdings even if it's not going as planned, it's only when you invest a very huge amount of money you can't afford to lose that you will be panicking anytime their is a serious dip in the market.