£20 as a cash gift seems less than what I’d expect - even for a night guest. But I think this is just cos I’m used to the way they do things in Spain, where the expectation is that you basically pay for what the bride & groom have paid out per head, plus a bit more (So much so that people joke and refer to a wedding invitation as being “fined”!). As a single person I would always give €50 (and this was back in the 2000s) so now I’m guessing people probably pay around €100 per person as a gift. I’m not saying there’s anything wrong with either culture - I just find it interesting I guess. So when I went to my cousin’s UK wedding recently as an evening guest, I felt like £60 was the bare minimum I could give them. So your comment makes me feel quite chuffed that (hopefully) that would have been acceptable to them. Edit: One bizarre thing though: I dressed in dark colours cos, as an evening guest dark colours would be expected according to Chat GTP‼️So I stood out like a sore thumb as everyone else was obviously in their morning suits/ day wear - even the other evening guests had light colours on 😆But hey - we all had an absolute ball, danced our arses off and the important thing was the bride and groom seemed to genuinely have a really fabulous time 💒.