怪我们都太年轻是人是狗分不清
[guài wŏ men dōu tài nián qīng shì rén shì gŏu fēn bù qīng]
A more bitter-sweet reflection suggesting regret because youth often comes with naivety—people might struggle distinguishing between loyalty and deceit. It laments that during one’s young days, it was hard to tell who truly cared and who was just using others.