Many students set up UnionPay cards in China before going abroad, not that UnionPay cards are not good, but that many people have encountered the same situation abroad, either their bank cards can't be swiped or their money can't be taken out. Think about it, if you go abroad to study in a strange place. The only thing I can rely on is the card in my hand. The result is still various problems. Isn't that completely insecure?
In fact, the best way is to bring some cash and apply for a credit card in the UK. This also avoids some losses in the process of currency exchange when opening a credit card in China.
Another reason is that there are not many domestic banks in Britain. Although it has a great influence at home, it is also limited internationally. You don't want to wait until you want to withdraw money and drive far away to find a bank. So this once again reflects the benefits of local bank cards.
As for not wanting an annual fee, it's actually very simple. When you arrive in Britain, you can pay attention to some local preferential policies for international students. As long as you pay attention, there should be an introduction about this.
In short, before going abroad, you can pay attention to the collection of information about this on the Internet or in other ways. So you won't worry when you go abroad to the local area. Also, you should pay attention to handling cards abroad. Many traps are not unique to China.