I find it really odd and it really gets on my nerves.
People who don't give the Church the time of day, who never go, who mock people who go, call God the sky fairy, and lambaste the belief of Christians (no other religion, just Christians,) should not be having a Church wedding IMO. It pisses me off that they want nothing to do with it; yet they think nothing of using the Church so they can get pretty pictures, of the lovely gardens and the nice Gothic Church. 
Pisses me right off. I know several vicars who refuse people who have never ever been to the Church. If you want pretty pictures with a nice building in the background, go to a stately home or something!
Same with Christenings. I have been to the family service at times, and the vicar has decided to do a Christening for someone's baby (a family who NEVER come to Church normally,) and it ends up full of people who have never been before and who never come again. In addition, they don't speak to anyone they don't know. They just ignore the regulars and stay in their family clique. Even when people try and make conversation with them, they don't want to know.
Some of the parishioners walk out when they see there's a Christening in the service, and that 90% of the people there are people who have never been before. As I said, they never come again, and don't even speak to anyone - only the people who are in (or with) the family who have come for the Christening.
Our vicar has been doing Christenings (as part of the family service,) to try to bring more families to the Church, but it doesn't - it just gets people using the Church for their convenience and never coming back. Same with weddings. Still, they get 400 quid every time someone has a wedding, so they're not going to turn down income are they?