In Sweden, many have microchips implanted into their hands (cash is almost extinct). It allows them to pay for anything (food, transportation, parking lots, etc) and even allows people to enter keyless offices. There are even some stores that are cash free.
One user of this technology is Hannes Sjöblad, he explains how this chip makes his life much easier. Instead of carrying around all these keys and cards, he can simply use the chip in his hand. It can be used for a variety of things (opening doors, phones, cars, etc). “The microchips are radio frequency identification tags. The same technology widely used in things like key cards. The chips have been implanted in animals for years to help identify lost pets and now the technology is moving to humans.” ("Microchips Implanted In Humans: Practical Or Perilous?").
Sjöblad says he has implant parties where people get to know one another when getting chipped together. Though a few problems that have occurred is that every touch leaves behind a digital footprint, which can disturb someone's privacy. In other words, wherever you go everybody knows. The chips are also easily hacked. So it is a good idea not to put important things or any life secrets on there. This is great technology so it is important to know it is there to use and that there are limits to which you should use it. It is predicted that the next generation of chips will be used for monitoring health and fitness. Right now, it's just a way of always having your key or key card with you.
(1) "In Sweden, Cash Is Almost Extinct And People Implant Microchips In Their Hands To Pay For Things". Financial Post, 2019, https://business.financialpost...e-saying-not-so-fast. Accessed 3 Jan 2019.
(2) "Microchips Implanted In Humans: Practical Or Perilous?". Cbsnews.Com, 2019, https://www.cbsnews.com/news/m...implants-biohacking/. Accessed 3 Jan 2019.