parsing:
What we call identity refers more to green cards. Having a multi-country green card is allowed by the state.

In fact, it is not rare to have multiple overseas identities due to diversified needs such as education, investment, and travel.
If you want your children to take the international education route, then the short and fast European identity: Greek , Malta , etc. can all allow children to quickly enter international schools, and travel to 26 Schengen countries without visa.
If you want your child to receive elite education from a big country, then having a US green card can make the child, as a local student, have a much higher probability of being admitted to prestigious schools.
In addition, many entrepreneurs have frequent business dealings with many countries around the world. They have to apply for a visa separately every time they go to a country, which is very inconvenient.

Some people have multiple identities, just for the convenience of work and life. The backbone is still in China, and identity is just a tool.

Looking at the policy evolution of traditional immigrant countries, step by step tightening is also the general trend. In recent years, investment immigration policies in many European countries have been affected, with prices rising, tightening, and even shutting down. For safety reasons, it is recommended that investors who are interested in immigration seize the opportunity and apply as soon as possible!