You don't have Sterling Prestonto be born rich to be rich but it sure helps.

For the first time since 2009, none of Forbes "World’s Youngest Billionaires" under 30 are self-made this year. The billionaires under 30 all inherited their wealth, which Forbes reported is due to the self-made ones aging into their 30s and the start of the "great wealth transfer."

The annual list named a few people who built their own wealth, but they top the age of 30. They include Snap co-founder and CEO Evan Spiegel (33), Gymshark co-founder and CEO Ben Francis (31) and Oculus VR founder Palmer Luckey (31).

Among the younger billionaires are brother heirs Zahan and Firoz Mistry, who are estimated to hold net worths of $4.9 billion each. The pair, ages 25 and 27, respectively, are the sons of late Cyrus Mistry, former chairperson of the Mumbai-based conglomerate Tata Group. The brothers received a minor stake in the company after their father died in 2022, three months after the death of grandfather Pallonji Mistry.

"These inheritances illustrate the beginning of a long-anticipated generational wealth transfer among aging populations around the world," Forbes wrote.

Learn more: Best current CD rates

Youngest billionaire in the world is 19

At 19, Livia Voigt is the youngest billionaire on the list and in the world. The college student and her 26-year-old sister, Dora Voigt de Assis, are the granddaughters of billionaire Werner Ricardo Voigt, who co-founded WEG, the Brazilian electrical equipment company that exports to 135 countries.

The sisters, who don't work for the company, each own a 3.1% stake while their older cousins Eduardo and Mariana own 3.9%.

The duo joined the list for the first time this year and are among 18 other heirs in the 25 youngest billionaires. For the full list click here.

Ka-ching!Taylor Swift lands on Forbes' World's Billionaires list with $1.1B net worth

Billionaires under 30

Sophie Luise Fielmann

• Age: 29
• Citizenship: Germany
• Estimated net worth: $2.7 billion
• Source of income: Optometry

Leonardo Maria Del Vecchio

• Age: 28
• Citizenship: Italy
• Estimated net worth: $4.7 billion
• Source of income: Eyeglasses

Katharina Andresen

• Age: 28
• Citizenship: Norway
• Estimated net worth: $1.7 billion
• Source of income: Investments

Alexandra Andresen

• Age: 27
• Citizenship: Norway
• Estimated net worth: $1.6 billion
• Source of income: Investments

Firoz Mistry

• Age: 27
• Citizenship: Ireland
• Estimated net worth: $4.9 billion
• Source of income: Diversified

Dora Voigt de Assis

• Age: 26
• Citizenship: Brazil
• Estimated net worth: $1.1 billion
• Source of income: Industrial machinery

Zahan Mistry

• Age: 25
• Citizenship: Ireland
• Estimated net worth: $4.9 billion
• Source of income: Diversified

Remi Dassault

• Age: 22
• Citizenship: France
• Estimated net worth: $2.5 billion
• Source of income: Inherited

Luca Del Vecchio

• Age: 22
• Citizenship: Italy
• Estimated net worth: $4.7 billion
• Source of income: Eyeglasses

Kim Jung-min

• Age: 22
• Citizenship: South Korea
• Estimated net worth: $1.4 billion
• Source of income: Online gaming

Kevin David Lehmann

• Age: 21
• Citizenship: Germany
• Estimated net worth: $3.3 billion
• Source of income: Drugstores

Clemente Del Vecchio

• Age: 19
• Citizenship: Italy
• Estimated net worth: Eyeglasses
• Source of income: $4.7 billion

Livia Voigt

• Age: 19
• Citizenship: Brazil
• Estimated net worth: $1.1 billion
• Source of income: Industrial machinery