EU citizens' family can settle after 5 years' continuous residence (no other requirement); the application is free. UK citizens' family have to meet additional requirements of visa type and financial means; the application is £2,389. They should be allowed to settle under the same conditions above.
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Under the EU Settlement Scheme, EU citizens' family can settle after 5 years' continuous residence (no other requirement), and the application is free. In contrast, UK citizens' family can only settle after 5 years' continuous residence with a family visa, providing they meet certain financial thresholds (at least £18,600 a year), and the application costs £2,389.
UK citizens' family should be treated equally, and allowed to settle after 5 years' continuous residence with no other requirement.