You made a solid point here, Constant monitoring and trying to predict short-term moves is more of a traders job than an investor's. But if an investor constantly monitors the market it may lead to emotional decisions especially for new investors.Bitcoin's dips and surges are part of its nature and investors who remain patient and disciplined are often the ones who get rewarded by the market. Investors don't need Constant market monitoring but what really matters for them is conviction, consistency and Discipline. That's why DCA combined with holding is one of the most sustainable strategies. It eliminates the stress of timing the market while ensuring steady exposure. At the end of the day what matters Is Discipline and Patience and instead of chasing predictions one must focus on accumulation and long term holding if they want to be profitable with Bitcoin.
I largely agree to what you said, but I don't think that it's wrong for a Bitcoin investor to check the price chart most times, because by doing so he might sees an opportunity to buy aggressively if he has the reserve funds to do so, because he can't be aware of the dip if he is not aware of what's happening in the market, so it's not a bad thing to monitor the chart, what's bad is doing it in excess, because excess of everything is bad.
As for the aspect of being emotional that you spoke of, i don't think it's possible for someone that is only thinking long term and knows the real characteristics of Bitcoin that volatility is it nature, so he will know that it will definitely recovers no matter how dip it fell, it's only a newbie investors that knows little or nothing about Bitcoin will be emotional and sell in panic, not someone that knows all it takes to invest in Bitcoin and be successful.