Question

what are the disadvantage of travelling abroad

Answer 1

pretravelling process might be very depressing because of all the documents you should collect in order to enter the choosen country.
What is more, you can get into trouble if you are not aqcuainted with the laws of the country you want to visit. What you are used to doing at home is not always normal for foreigners. Or you can also stay unsatisfied if the country you have chosen does not fit your expectations.

Answer 2

it needs a lot of money so common people can't travel to abroad......I only know one point...