A whole sector of the economy is now catering to the needs of the grey pound.
现在已出现了专门为老年群体服务的经济部门。
英语百科
Grey pound
In the United Kingdom, the expression Grey pound is used in the context of marketing and or retail sources and refers to the economic power of the elderly people. It is frequently used as a label for movies aimed at an older audience. A similar term exists for lesbian and gay consumers, known as the Pink pound.