That why its tradition now that the father of the bride 'Gives her away'!
Back in the old days when a guy spent most of what his life's worth on a brides dowry and then she didn't live up to the expectations relative to the purchase price there was some conflict issues with getting your money back on a bad purchase.
However if shes given away then there is no warranty or implied guarantee an anything! You got what you paid for!
Defective girlfriends, I think we all have been there too many times and can relate well.
But I wasn't the one who went from being a non smoker to three packs a day (in one day) because I was bored and needed pick me up hobby then had problems with health issues immediately afterwards and couldn't make the connection!