Now the same happens to Britain in reverse. There is no benefit for any state to give up territory for nothing in return, why would they be "pretty pleased" about it? Also not only is Britain ceding its territory but they're actually paying rent to keep a base on what was previously their own land! It almost feels like China is involved in this because the number doesn't sound like something Mauritius would come up with on their own. See other 99 year leases the CCP is involved in, they're obsessed with this number:
https://ceylontoday.lk/2023/08/31/over-1200-acres-of-sri-lan...
https://www.reuters.com/world/asia-pacific/australia-says-no...
https://www.japantimes.co.jp/news/2018/05/25/asia-pacific/ch...