You cannot honestly tell me having 2 receptions, with 2 lots of food, with drinks etc is 'cheaper' than ONE reception. One reception is cheaper than 2, which would be double the cost. You just cannot honestly tell me 2 receptions with twice the food and drinks is cheaper. No person could believe that.
Because they don't feed the evening guests as much as the all-day ones. The British, I am myself, are very into their wedding 'breakfast', a sit down meal for the all-day guests. And then usually a buffet for the evening guests.
The big issue, in England especially, are really restrictive laws on where you can be legally married and by whom. So this hours and hours and hours wedding tradition started whereby the couple marry early, then have this 'breakfast' with the inner circle and then an 'evening do' later on.
So the wedding drags on and on.
And some people tend to lose their minds when a couple strays from this formula.
For example, one time on here an OP was going to be married at a registry office in London and then the reception was going to be afternoon tea in a hotel nearby, using the hotel's afternoon tea menu.
Cue dozens of people telling her she need to add in some 'hot' meal options because older guests 'need something hot to eat', lay on champagne or bubbly for toasts and speeches (of which she wanted neither), said that they would not attend such an event as it wasn't a 'proper' wedding, etc.
People whinge left and right about the cost of attending these all-day affairs (they are pretty boring for the most part) but then some get their arses out of kilter if it's anything other than the ceremony/reception with sit down meal/evening do set up.