gravitasium

This! I use traditional with wheels and natural with touchpads

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Since it doesn’t happen often, respect for choosing to share that you accepted a counterargument.

Many dual citizens pay double taxes in some way or another.

Also, some countries are vindictive towards those who renounce their citizenship and make it very hard for such persons to enter, which is a pretty big deal for anyone leaving friends and family behind.

Other countries don’t allow for revoking citizenship whatsoever.

One reason to allow dual citizenship is to encourage immigration, especially of in-demand professionals who would otherwise be quite deterred by a one way ticket.

I don’t agree with the thinking behind this, but note this cuts both ways - international agreements have many provisions to prevent statelessness.

So the state can now strip a dual citizen of their German citizenship, whereas before once someone chose German citizenship both the state and person are stuck with each other.