Especially young people like to travel by hitchhiking. It is one of the cheapest ways of travelling. They take their backpack and can go wherever they want.
It’s cheap, but dangerous. And you must have luck by hitch-hiking. It is very slow travelling.
When we are going abroad we must have necessary documents- at first checked a validity of your passport, sometimes we must get a visa and other things e.g. we must exchange money.