George Joseph (born September 11, 1921) is a 103-year-old American billionaire and the founder of Mercury General Corporation, an insurance provider. He is one of the oldest billionaires in the world, boasting a net worth of approximately $2.3 billion, and he continues to serve as chairman of the company he founded in 1962.
Many of the world's billionaires are far older than the tech-founder stereotype. At 103 years old, George Joseph is still actively involved in his company, Mercury General. In fact, young billionaires (under age 50) make up just 10% of the global billionaire population.
American George Joseph, aged 103, is the world's oldest living billionaire. He founded Mercury General in 1962, an insurance company now valued at $2.2 billion.
The "first richest kid" isn't a single historical figure, but Princess Charlotte of Wales is often cited as the current richest child due to massive inherited wealth from the British Crown, while early child actor Jackie Coogan holds the Guinness World Record for the youngest non-inherited millionaire, becoming a millionaire by age 13 in the 1920s from movie earnings. Different lists focus on inherited fortunes (royalty, heirs) or self-made wealth (entrepreneurs, social media stars).
Becoming a billionaire by the age of 25 is an incredibly ambitious goal, but it is not impossible. There are a number of things that you can do to increase your chances of success. Here are five ways to become a billionaire at the age of 25: Start a successful business.
At just 22 years old, Kaivalya Vohra holds the title of India's youngest billionaire. His Bengaluru-based Zepto revolutionized urban shopping with its 10-minute delivery model, turning him into an overnight startup icon.
The Walton family, founders of Walmart, are consistently ranked as the world's richest family, with recent estimates placing their wealth well over $500 billion, largely from their stake in the retail giant, while the Al Nahyan family (Abu Dhabi) and Al Saud family (Saudi Arabia) also rank among the top, deriving fortunes from oil and investments.
As an 11-year-old, Sarah Rector became the richest Black child in America, but danger in Oklahoma led to her family moving to Kansas City. Rector's story, long forgotten from the history books, is now the subject of the new movie “Sarah's Oil.”
Elon Musk is the wealthiest person in the world, with an estimated net worth of US$682 billion as of January 2026, according to the Bloomberg Billionaires Index, and $779 billion according to Forbes, primarily from his ownership stakes in SpaceX and Tesla.
The "7-3-2 Rule" refers to two main concepts: a financial strategy for wealth building, suggesting it takes 7 years for the first major savings milestone, 3 years for the next, and 2 years for the third, driven by compounding and increasing investments; and a trucking rule (7/3 split) allowing drivers to split their 10-hour mandatory break into 7 hours in the sleeper berth and 3 hours of off-duty rest, offering flexibility.
The world's 10 richest families
Elon Musk, World's Richest Man, Nears $800B Net Worth, Trillionaire Status. Elon Musk, the richest man in the world, has pushed the boundaries of personal wealth and net worth.
Rockefeller's net worth was estimated around $900 million (about $29.3 billion in today's dollars). As of 2024, the family fortune was worth around $10.3 billion. The family's wealth was protected and transferred to future generations through a series of irrevocable trusts established by Rockefeller's son, John D.