But I'd rather spend my college days finding out what children are interested in.
I'd rather是I would/had rather的缩略表达，后面可以接动词原形或者从句意为“我更愿意;我宁愿”。如:
1)Tom would rather read khan talk.
2)I'd rather you go there by yourself.
Tom prefers reading to talking.(相当于Tom would rather read than talk.)
He prefers wine to beer.(相当于He would rather drink wine than beer.)
I'd prefer to fly.(相当于I'd rather fly.)