You need to get rid of the idea that you can get rich quickly by investing in Bitcoin. This is not a quick scheme for earning money. Investing in Bitcoin cannot guarantee you profit, but if you invest patiently, there is a great possibility of getting good returns. Bitcoin is the most volatile currency, and it is very natural for there to be a price correction at any time. If the price is slightly down at any time, do not panic, but if you can hold Bitcoin regularly, then it is definitely possible to get good returns. Moreover, it is more convenient for those who do DCA when it is down. In terms of investment, if you keep accumulating a part of your discretionary income in Bitcoin regularly, it will help you risk-free and stress-free investment and you will be able to keep a large part of Bitcoin in your possession in the long term.
You are right.I think next month we might see Bitcoin at 130,000 because we saw the new ATH this month. But we may expect that Bitcoin can reach 1 million after the next six or seven years because seven years ago or on this day in 2018 Bitcoin was worth 7716 dollars but after seven years the price has reached 123,000. In words 7700 and where is 123,000. Did we ever think that Bitcoin would be worth this much? So let's think about what Bitcoin's price could be after the next seven years. This shows that Bitcoin has huge potential but need to be patient.
The way price is gradually going towards 130k is not enough to say altcoins might follow, because at this point, things are going extreme, and we cannot really predict for altcoins, but for Bitcoin, most times you see the Bitcoin price going up, and altcoins might not follow. So these are all the reasons why they are always advising people to invest in Bitcoin directly. because it will favor you when you invest, because there is more potential in Bitcoin than in any other coin.
So it is usually Bitcoin that is leading, and when you follow what is trending, it is even better, and that is why they are encouraging people to buy Bitcoin, especially when you are buying the dip, because buying the dip is like the biggest opportunity because there is no way that you will invest in Bitcoin and then regret it.
We all know that altcoins depend on Bitcoin so saying altcoins will grow along side with Bitcoin is not wrong and growing along side with Bitcoin doesn't mean they have same potential or same volatility level and on the other hand altcoins should not be our concern because they are not to be trusted and rely on because they can destroy someone's emotions easily.
I disagree with the ending of your last paragraph, someone can invest in Bitcoin and still regret if they didn't follow due process or do what is required to have a great investment so don't get it twisted, once you don't keep your emergency funds and reserve funds well and you don't invest from your discretionary or you invest more than you are suppose to invest from your discretionary, you will definitely regret it so that don't make newbie believe once they invest in Bitcoin everything is settled No.