I hear about people roaming the earth with very little money in their pockets. And I mean going to multiple continents for months. How do they do this? I will have about 2k when I plan to drive across the US, take off for Europe and Asia.
goodluck, but for $5 a day even in some of the cheapest places in the world you'd be living off scraps in the rubbish bin and sleeping on the streets. $2000US in Europe wont stretch more than a month and a half very max but most likely less than that unless you sleep on the streets and eat barely anything.
There are a lot of ways to do it cheaply, which a person learns over the years when travelling a lot.
For a start, if u are driving, u could sleep in or beside your car, to save accomodation money.
Will u also be driving in Europe and Asia, or just in the US? If u are not, and u have plenty of time, u could cycle or walk accross Europe and then from there to Asia. U could sleep in a tent. Not in camping sites, because they tend to be expensive. Ask farmers if u can camp in their fields, or sleep in their barns.
U can also get some information about voluntary work, that u can do in return for accomodation and food.
If u want to stretch your money as far as possible, u can start considering even before u leave, how much u can buy with for example $5 per day and see if there is a way u can buy more, if u buy different things instead. If u buy certain things, that much money can go quite a long way. At the risk of sounding silly, I will say that living or travelling on very little money is almost an art form and takes practice. There have been quite a few times when I have had to live and travel on very very little money, but I did it, because travelling is more important to me, than being comfortable and having things.