What's the meaning of "but not all the way"?

[Infin1ty]

Hello everyone,

Cound anyone please tell me what "but not all the way" means in the sentence below:

When I was a boy, my family came to America, but not all the way.

Thanks in advance. :)
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Please feel free to correct me if you find any mistakes in my posts.

[Mister Micawber]

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I think it means that they did not adapt fully to their American environment or did not adopt all the American customs and practices.
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Native English teacher at Mister Micawber's

[Infin1ty]

Thank you very much, Mister Micawber. :D
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Please feel free to correct me if you find any mistakes in my posts.