You should let him read books rather than playing computer games.用rather than后面应该是play,用instead of后面是playing
Let's go hiking rather than staying at home,如果用rather than,后面应该用stay,用instead of后面是staying
instead of中of是介词,后面必须接v-ing,rather than前后动词形式一致,前面原型后面也是原型,但前面如果是不定式形式（to do）,后面的动词前to省略,就是原型
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可以用rather than,但后面用stay,不能加ing,因为 go 食是原型