Crispus,
As a basis of comparison I offer the following information.
My son (age 34) just got married last month. His wife is from Brazil. Their wedding was held in Brazil at their expense, with a small contribution from her parents, who are not in a strong financial position. We gave them a wedding gift of $10,000. I do not know if they used any of that toward the cost of the wedding.
From our side of the family only my wife, daughter, sister, brother-in-law and I went to the wedding in Brazil. We have decided to make a second wedding here in the US in May so that our family and friends can celebrate with us. This will be totally at our expense. I initially set a budget of $15,000 for this wedding but, as these things usually go, it looks now like it will run closer to $17,500. This will, by no means be a low-end affair. The wedding will be on a Sunday afternoon when costs are significantly lower. It will be held at an elegant ballroom. We expect approx. 110 guests for a cocktail hour following the ceremony,with hot hors d'oeuvres and open bar, followed by a sit down dinner. We have hired a 5 piece band which will also provide a piano player during the cocktail hour.
We could have reduced the costs by opting for a buffet instead of sit down dinner and a DJ instead of a band. But in any case, a perfectly enjoyable wedding can be done for less than $15,000.
I am sorry that things have gotten tense with your daughter over the wedding but I think that she and her future spouse have sufficient resources to plan a wedding on the assumption that they pay the full costs and that they should be grateful for any contribution you care to make.
Grumpy