He can keep his dollars safe in crypto. There are many ways to keep Hughes dollar safe in crypto like he can buy a hardware wallet to keep his dollars safe in stable coins or since bitcoin is now much deeper than ATH he can buy more than 2 bitcoins with his money now and if bitcoin price goes back to previous ATH price If equal then he will get 3x return of his money Which is a potential investment
The problem is to move those huge amounts of money on a 3rd world country, I don't think its easy to buy 2 bitcoins, for sure that would wake up the Bank and the Police Alarms.
And with that money for sure he can do big things in that country, even buy a new house or have a nice back up to support his family for the next years. I feel like investing all in Bitcoin is the last option of what to do with that money in that country.
It seems you are right in your assumption. If he invests his money in things like land or house, it will be a strong asset and will provide a strong support to him and his future generations. Every country is constantly growing in population but no country is growing in terms of size so as time goes on the price of strong assets like land will increase. that is the benefit of buying house or land
Lands and other real estate investment are not the main investment these days, and most investment analysts are now advising against real estate and other landed properties but if you invest such huge winning into a volatile asset, the possibility of gaining much more in a short term is high.
You don't seem to be a good investor and are definitely not in my country because I was so surprised to read from you that land and real estate investment are no more lucrative. As much as I don't know the part of the world you are in, I still doubt it unless it is the time of war or the land and properties you bought are prone to flood and other natural disasters.
If not, real estate will always be booming all over the world, they are the best in using to beg your money from depreciating in your bank account if you can't invest it in the USD that is somewhat reliable in the long run. This investment gives a good return and is safer than the volatile investment you referred to.