Not a fan of the institution of marriage, and got pretty tired of weddings during the years 2005-2010 when all of my pals were getting wed and I sometimes had two weddings on the same weekend (in 2007 we had 14 weddings in the one year.) It was incredibly expensive and I didn’t have a holiday for two years because I couldn’t afford to (in terms of money and annual leave which was exhausted by the weddings.)
Having said all that, seeing somebody that you care about get married (which is obviously important to them, regardless of my own personal views) to their partner is a wonderful thing, and some of the fripperies around the occasion can be really good fun (especially in Scotland- I love a Scottish wedding.) I have no particular views on people asking for whatever for their wedding gift- it’s customary (although not compulsory) to give one, but I’ll definitely go for a small token rather than a large gift if it’s already cost me a bomb just to attend.
I do think weddings (and the planning of them in particular) can bring out the worst in people- hidden resentments (petty or serious), jealousies, past hurts can all bubble to the surface once a wedding is on the horizon. Makes you wonder why a lot of folk bother. 