Rich Paul, Simon, Tristan Thompson, Khloe Kardashian, Lucas Newton, Kendall Jenner, Justine Skye, Jordan Woods and Kylie Jenner pose for a photo as Remy Martin celebrates Tristan Thompson's Birthday at Beauty in Los Angeles on March 1, 2018. (Photo by Jerritt ClarkJerritt Clark/Getty Images for Remy Martin)

Some are in it just for the money, others to help buy a meal. Then there are those who trade for fun or to spend time among friends. Millions of investors – pensioners, security guards, high-school students – dominate China's stock markets, conducting about 80 percent of all trades. Retirees gather in brokerage houses dotted around China also to enjoy some company and savour the air conditioning on hot days. Some start as young as 13, trading from home with an eye on future careers in finance. Winning isn't guaranteed. This year, among the most turbulent in China's financial history, its stock markets more than doubled in the six months to May, only to crash amid concerns that growth in the country, which makes everything from cars to steel, is slowing faster than previously thought. (Photo by Aly Song/Reuters)

A waitress wearing a protective mask and gloves to curb the spread of coronavirus disease (COVID-19) serves a drink for a customer at the Koral restaurant in Nusa Dua, Bali, Indonesia on August 9, 2021. (Photo by Fikri Yusuf/Antara Foto via Reuters)

Reflected in the rearview mirror, Jose Collantes gets a hug from daughter Kehity while they're stopped at a red light, as Jose drives his five-year-old home from a playdate in Santiago, Chile, Sunday, September 6, 2020, three months after they lost his wife, her mother, to COVID-19. Their case highlights how COVID-19 deaths the world over are often the beginning of a new personal journey for those affected. (Photo by Esteban Felix/AP Photo)

Dancers warm up in the wings before performing in a full-dress rehearsal at the Moulin Rouge in Paris on September 8, 2021, two days ahead of the reopening of the cabaret following an 18-month closure amid the COVID-19 pandemic. Closed for a year and a half due to the pandemic, the Moulin Rouge and Le Lido, emblems of the crazy Parisian nights since 1889, are finally reopening. (Photo by Christophe Archambault/AFP Photo)

A handout photo made available by the Roscosmos State Corporation for Space Activities shows the Soyuz-2.1b launch vehicle with the OneWeb communication satellites launching from the Baikonur Cosmodrome, Kazakhstan, 07 February 2020. Thirty-four satellites from OneWeb were successfully put into orbit on a single Soyuz rocket from Baikonur. (Photo by Roscosmos/EPA/EFE)

A demonstrator runs between burning tires during a curfew, two days after the nationwide anti-government protests turned violent, in Baghdad, Iraq on October 3, 2019. (Photo by Wissm al-Okili/Reuters)

A pale tussock moth (Calliteara pudibunda) larva or caterpillar just after moulting on heather on Hankley Common, Surrey, England on April 30, 2019. (Photo by Gillian Pullinger/Alamy Stock Photo)