For the child's first passport, the originals are checked by VFS (Bangkok or Chiang Mai) and then returned, including any passports.
Obviously for your wife's visa, they take her passport.
The previous governments have a lot to answer for. Have faith that Labour can at least put some things right, like the NHS, by the time of the next election. 🙏
When I transferred my son's Extension to his new passport (Chaengwattana), they needed a photocopy of his original O visa issued in London in 2016 (2 passports ago!) and my entry to Thailand stamp from 2019. Luckily I had brought everything with me.
Nobody likes change. Thatcher changed things, Blair changed things and 14 years of Tory rule changed things. Brexit changed things dramatically! It's too early to tell whether Starmer will actually deliver any changes, good or bad.
I suspect there was more before that. Had he been in the bar concerned and been asked to leave? The girls that joined in once he was on the ground, looked they were gaining revenge!
Won't be everyone's cup of tea, but for any dads out there this is a very moving and sometimes difficult watch. Superb performances from the two leads and amazing use of music.