Belgium has had exactly this for decades. But now they want to get on the hype train for smartphone based ID, because card reader support is still shit in browsers in 2026.

Adding to this: anyone older than 12 years old is required by law to have their government issued ID on them at all times when in public. If your ID is suddenly your smartphone, you're essentially required to have that on you 24/7. Dystopian spyware.