Speculating on crypto is like speculating on any stock but sometimes you have to look at the facts. Its been a terrific investment for 100's (or more) of thousands of investors. Some missed the boat or didnt invest for reasons like the above posts, some lost their life savings but that happens with anyone who invets foolishly in any company or thing.
Its all ok but you should have an understanding of crypto and why people jumped on board.
Speculation on any company or currency starts the day you purchase shares of it and the world could end tomorrow as well, there is always a reason why some choose to invest in any product and some who do not.
Crypto is not controlled by governments and government cant control crypto. In fact, its why it exists. The government can not tell the banking systems anything regarding it because the banking system doesnt use it nor do they control it. Its a private payment system centralized in no country between individuals.
What people confuse is "exchanges" in some countries like the above mentioned post. The crypto is not controlled, its a private payment system with no centralized country. Just because someone decides to create an "exchange" where people can buy, sell and store in a country as a service does not change the non centralized crypto. Any country can shut down an "exchange" or store for any reason but they can not and do not control the exchange of crypto between private individuals anymore then they can control the exchange of pebbles from your garden. You do not need an exchange, an exchange is a middle man, nothing more.
Anyone in Turkey can still buy, sell and trade crypto from their computer. Instead of an exchange, its kept on your hard drive or memory stick, no big deal at all, heck you can even carry it with you.
Anyway, hope this helps, no further comment from me except to say history already spoke, from $885 a coin in 2017 when people said that was crazy to $60,000 now. That was a good speculative investment like any market investment, such as a company hunting for oil, or precious metals or a promising medical breakthrough. Not for the weak and not for someone who cant afford to lose what they invest in but that goes for any of the mentioned, huge risk can lead to nothing or huge reward.
As an example, some people bought digital currency years ago from overseas exchanges, still sitting on a hard drive on their own computer or memory stick since there was no exchange in the USA and this was more simple. It could be sold at any time, in fact, fast forward a few years and you can now just do it right here in the USA.
By the way, Im not promoting it at all but nothing wrong for those who want to speculate, not much different then speculating in any product or device underdevelopment, much like Elon Musk has. Anything can happen as the crypto goes mainstream you will have the clueless public more reliant on "exchanges" those will be the ones that get burned in a country that bans exchanges and then the public doesnt know what to do because they learned backwards. They should have learned to buy coins on their own so they knew what they were doing, THEN if and only if they wished store it on an exchange instead of a memory stick or hardrive.