I've seen quite a few stories about how dual citizens must now enter the UK on their British rather than foreign passport.
My kids are technically dual citizens as I am British and they can inherit British citizenship through me. Their dad is from another country and the children were born in that country, we live there and they have passports from that country. We've never bothered applying for British passports for them as there didn't seem to be a need. We don't have any plans to live in the UK or spend longer than a couple of weeks visiting.
I'm quite unsure whether the rule changes apply to them. I suspect the rules do apply and we'd need to get them British passports before we visit again but it's a bit ambiguous because we haven't "claimed" British citizenship for them. At the moment they are just Thai and if we wanted to apply for their British passport we'd have to send off a load of documents and pay a fair chunk of money. I'm not overly worried right now as we got their ETAs before the rule change and those are valid for another year or two and should be enough for them to enter??
Bit niche but I was wondering if anyone has a concrete answer for this based on their own experience?