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He left school for work because his family was poor. is the most popular phrase on the web.

He left school to work because his family was poor. 1396,000,000 results on the web	He left school for work because his family was poor. 1401,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
He's been overseas on and off since he left school after his GCSEs. He left school at 7 years old... to do the work of an adult. "His family is poor, and his mother is sick, his dad died young, he left school." Dylan Thomas was 15 years old when he left school. Mine's no good, so he left school. I left school to learn my trade at 15. Her father, Professor Bonsignore, for the shame he left school! He left school before he'd finished his GCSEs.	Dylan Thomas was 15 years old when he left school. The son of a Yorkshire blacksmith, he left school at 13 to become an apprentice bookbinder. He left school at 7 years old... to do the work of an adult. Her father, Professor Bonsignore, for the shame he left school! He left school before he'd finished his GCSEs. "His family is poor, and his mother is sick, his dad died young, he left school." He's been overseas on and off since he left school after his GCSEs. Mine's no good, so he left school.

He left school to work because his family was poor.

1396,000,000 results on the web

He left school for work because his family was poor.

1401,000,000 results on the web

More popular!

He's been overseas on and off since he left school after his GCSEs.
He left school at 7 years old... to do the work of an adult.
"His family is poor, and his mother is sick, his dad died young, he left school."
Dylan Thomas was 15 years old when he left school.
Mine's no good, so he left school.
I left school to learn my trade at 15.
Her father, Professor Bonsignore, for the shame he left school!
He left school before he'd finished his GCSEs.

Dylan Thomas was 15 years old when he left school.
The son of a Yorkshire blacksmith, he left school at 13 to become an apprentice bookbinder.
He left school at 7 years old... to do the work of an adult.
Her father, Professor Bonsignore, for the shame he left school!
He left school before he'd finished his GCSEs.
"His family is poor, and his mother is sick, his dad died young, he left school."
He's been overseas on and off since he left school after his GCSEs.
Mine's no good, so he left school.