The supply chain for the Gurkha regiments is infamously expensive and tenuous, far more than for domestically raised troops. And it's not like they're raised from a first world country's population where kids go to school and are medically well managed - educational and health issues are massive. Think about how difficult it is to keep a 'normal' unit staffed up and then add a multi-time zone gap to a small, poor, third world country to that mix.
The key reasons they were retained following WW2 (managing the retreat from Empire in the Far East, and Hong Kong) have largely disappeared, and it's difficult to deploy Gurkhas in many typical Western military scenarios, which means they can't be slotted in to the usual round of taskings easily. You'll never see them deployed to the Arctic or on domestic COIN Ops, for example.
Thanks to recent changes in their citizenship status, hordes of Nepali extended family members are also being imported into the UK. Having a son the the regiments is increasingly seen as a huge back door into the UK social safety net for the third world.
For these and other reasons they've been trying to get rid of them for years, but public sentiment keeps dragging them back into the spotlight. I'm sure there's a 'wanted' poster with Joanna Lumley on it posted at MoD HQ
So no, don't do what the British have done in this regard.