You should always be careful when it comes to pickpocketing, whether you are in a new country or just in your neighborhood, but obviously, the chances increase when you travel.
Tourists are more targeted than the locals because tourists tend to get distracted easily, they blindly trust the locals, and they are constantly too excited to pay attention!
Nothing can spoil your day and vacation more than getting your money, smartphone, or/and important papers stolen from you.
Keeping a close eye on your belongings can help, of course, but no matter how much you try, you will never be completely aware of everything around you all the time, especially that pickpocketers always develop sneaky ways that can manipulate us easily.
In order to be completely protected, you need to have a few items and devices to ensure the safety of your belongings and to enjoy your time discovering the new cultures without worrying.