Such people will only miss out on good opportunities, Bitcoin will only give an investor the most effective results when he can consistently hold Bitcoin for the long term. If an investor wants to hold Bitcoin effectively, he must use DCA and must maintain strict consistency, consistency is the most effective way to succeed in Bitcoin. Another thing is, to worry unnecessarily about the price of Bitcoin, where history proves that Bitcoin is successful in the long term, I don't understand, also even have proves, but why people are unable to believe in Bitcoin for the long term. Such people will miss out on future profitable opportunities, and in the end only get disappointment, and the only reason for this is their ignorance of the reallity of Bitcoin.

What you do you mean by this bold sentence above, if you are still talking about loss as an investor who wants to hold for a long period of time then you are wrong or maybe you are referring to Bitcoin trading and not investment because there is no way you will be investing bitcoin for a long term to that you will have a loss unless Bitcoin will crash or someone temper your wallet or you sell at loss as traders always do so don't get twisted and nothing will make Bitcoin to crash. Yes Bitcoin has risk and that is why you should invest with an amount that won't bother you in anyway even if something comes up and  it is not an investment we are expecting the return in a short time.

What you said is true because as long as we have the ability to continue buying Bitcoin at any price, then it's better not to delay and immediately make a purchase, especially if it is to be saved as a future investment. So in such a case, of course there is no reason to stop buying or waiting for the price of Bitcoin to drop, because as long as there is the ability to make Bitcoin purchases at a certain time, then do it immediately without having to worry because Bitcoin still has the potential to continue flying high in each cycle.

But if you have seen someone waiting just to make a Bitcoin purchase when the price drops, maybe that person is not a Bitcoin investor but only a trader who is still not brave enough to hold Bitcoin in the long term. So everyone can actually easily distinguish it through the way someone buys Bitcoin. Because investors who like to store Bitcoin for the long term will not think too often about reselling the Bitcoin they have bought at any time.

Of course, past performance cannot determine or guarantee future results. However, evidence supports that long-term investment in Bitcoin is very low risk and the chances of losing your money are very low. The Bitcoin market is very volatile and can go up and down at any time. Suppose you have invested and you have set your investment time frame for 9 years, your investment is almost at the end of the problem period but if the market sees a major decline then your investment will be lost. Bitcoin is very volatile and anything can happen at any time. But compared to short-term investment, the risk is much lower in long-term investment. The chances of losing your money in short-term investment are much higher. You should never invest in short-term. Keep your investment horizon long, such as 3 to 4 circles.

This is just the point buddy, don't just wait for the dip before buying, keep on buying and if in the process of buying the dip comes, see it as an opportunity to accumulate more Bitcoin at a cheaper rate, not by waiting for it which might made the said fellow to miss a whole lot of buying opportunities during those period of waiting.
Furthermore, this current price of Bitcoin might be a dip buying in few years time from now so the best thing is to buy now that it's still very cheap comparing to how much it might get up to in the future.