Mine have done some hair-raising things, probably not until they were 18+ on gap years and they didn't tell me until afterwards.
I would say No! and not with someone she met on the internet even if they 'are not a stalker honest'.
Do you know anyone in London whom you trust she could go and stay with and go with?
Aren't premieres invitation only? DD went to one (overseas) and was able to take DGS but it was by invitation.
Angela Rayner lashes out and calls Sunak “pint sized loser”.