That's one thing some people who criticise Bitcoin don't understand, they'll make errors that would make them lose their coins and then call it a scam, instead of admitting their mistakes and take corrections, in Cryptocurrency space, especially Bitcoin investment, if you do things the right way you'll thrive but if you do others you lose and that's just it, asides Cryptocurrency, greed has been the downfall of many and they don't learn, you don't have to be too greedy to achieve success and it applies to Bitcoin investment too, cause greed can make one vulnerable to scammers that would easily mislead one into the wrong investment and before you know it their coins would be gone then they start blaming it on Bitcoin forgetting it's their actions that caused it. Doing the right thing pays, and when one picks the right choice of investing in digital currency (Bitcoin) you don't ruin it by being too greedy.
Such incidents are still happening in many countries. There are many countries that do not have a general idea about cryptocurrency. That is why many scammers easily loot a lot of money from the country's unemployed people by tempting them to earn a lot of money in a short time and very easily. In South Asian countries, people often encounter various scam companies, these companies lure people to invest by falsely promoting crypto tokens, later they fail to get the desired results.
There are even many countries that still cannot differentiate between crypto scams and gambling company scams. Especially in countries where the number of unemployed is high and crypto is illegal, scammers continue their activities very easily. Although they are basically victims of scams while gambling, they blame cryptocurrency due to lack of knowledge.
Promoting Bitcoin is also one of the difficult tasks, especially in such countries. Without proper knowledge they will use Bitcoin to get rich quick and when they face loss they will call Bitcoin a scam even they say that. So I think knowledge is the first thing that is important. Without knowledge you will consider Bitcoin as a scam too.
Even in the developed countries you will still find people that are falling victim to scams on daily basis. So I don't think it's wise to generalise an entire country in this regard. Even in those countries where you are making references to, there are still people who can't fall for scam. They are well enlightened. One thing I see that makes people fall for scam easily is greed. And if you can't control your greed level, there is no amount of bitcoin knowledge that can fix that for you. Once your greed level is very high, you can easily be scammed. Countries around the world are enlightened about bitcoin already. But when you can't control your urge for urgent money you will go for everything that appears as a shortcut to make money, without doing proper background checks.
I agree with you using the DCA method when the process of collecting Bitcoin will certainly provide an opportunity to continue to get more bitcoin for our future and most importantly we must use funds that we do not need in the near future in order to withstand in the long run.
When we choose to make a profit in the near future, of course we have to buy when there is a decline but it will be very difficult to know that the extent to which the decline will occur and it will be better we use long -term investment and always be consistent in buying Bitcoin to take advantage in the future.
Since you already know that it will be difficult to determine the extent that the will occur, that's why investors are always encouraged buy bitcoin regularly by utilizing the DCA method. So investors with long term perspective need not wait for the decline.
Surely I'm in this lane with you on this, it is greediness and desperate on doubling the already money he has, Bitcoin is not were you will just start making money immediately, you should have it in mind that when you buy or invest on Bitcoin, there is always needs to hodl dips in long term for you to make a good profolio, so if you really understand all the protocols governing Bitcoin you never be scam, but a process where by you don't want know how Bitcoin works, and once someone that knows the in and out of Bitcoin come across you, don't be surprised that you have just given a room for the investor that knows Bitcoin well to scam you because u are still a newbie, so be in a rush to quick money increases the high rate of scammers in the country's.