我們常說，小孩子們是天真爛漫、自由自在的。表達 to be footloose and fancy-free 形容人了無牽掛、自由自在，不承擔家庭或感情上的責任和義務。其中，形容詞 “footloose” 和 “fancy-free” 是同義詞，意思都是 “自由自在的，無拘無束的”。
Enjoy being footloose and fancy-free while you can, young man. As you grow older, you will have responsibilities.
Now that she’s left her stressful job, she’s footloose and fancy free!
After they got married and had a family, they couldn’t travel as much as they used to! They were no longer footloose and fancy-free.