They may want them to help out at home, or not "see any reason why a girl would need to leave," Lewis says.

他们可能希望她们帮助打理家务，或“不明白一个女孩子究竟为什么必须上学，”Lewis说。

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"It's a fun and educational thing to do for people who are married with children and need a legitimate reason to leave home, " she says.

WSJ: Work and Family: When Moms Need a Business Trip