I'd say older people might be more inclined to complain, mainly because they are generally less adaptable to change. They've lived longer, seen more, and often have a set way of how things should be. For example, our grandparents often grumble about new technology – it's not that they dislike it, but it's just so different from what they're used to. This resistance to change can sometimes come across as complaining.
我會說年長的人可能更傾向於抱怨,主要是因為他們通常對變化較不適應。他們活了更久,見識了更多,並且通常對事物應該怎樣有一個設定的方式。例如,我們的祖父母經常抱怨新科技 - 並不是他們不喜歡它,而是因為它和他們習慣的東西太不同。這種對改變的抗拒有時可能會被理解為抱怨。