I believe there is some confusion in this thread. There are no specific restrictions for UK *citizens*.

The BVI restricts the entry of "persons travelling from the UK" regardless of their citizenship. See https://bvi.gov.vg/media-centre/travel-ban-imposed-dominican-republic-and-uk-travellers

The UK restricts the departure from the UK of UK residents who don´t have "a reasonable excuse" to leave the UK. See https://www.gov.uk/guidance/coronav...ng-abroad-during-stay-in-uk-restrictions