by choice

by choice idiom
Deliberately, as a matter of preference. For example, No one told me to come; I'm here by choice. This expression replaced the earlier with choice, used from about 1500.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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