Groom's Responsibilities
While grooms everywhere will tell you differently, there is one thing that seems true for all the grooms and that is the fact that they hold a large amount of responsibility over what the bride does. While the bride does a lot of worrying the groom tends to do a lot of doing and this may be an even more important practical responsibility that many grooms have. But as a groom you need to remember to never bring this to the bride's attention. If you tell the bride that she's not doing enough than she will lose it at you and that is no way to begin a life together. So you need to do everything, pay for everything, calm her down when she loses it, and take no credit for any of it. This is your first experience in the act of humility. Absolute, total humility that is totally unrequited.
While the grooms do these are fairly comprehensive there is a whole bunch of other things that need to go down if you are the groom. But your wife or his future wife will no doubt remind you of all you do for responsibilities and then give you more things to do so it is tough to even try to come up with a quantitative figure for the things you need to do.
The responsibilities of the parents of a grown are fairly straightforward and even though the parents of the Groom don't really do a whole lot, there are certain things that they handle traditionally and knees things should be addressed and brought to bear if they are going to do that.
Financial responsibilities of the groom’s parents involved the rehearsal dinner and a number of other things which has sort of gone by the wayside as more and more brides and grooms to together today tried to do things in their own way. Without the help of their parents and it is for this reason that much of the time, much of the things that need to get done are done by the bride and groom themselves.
If you'd like more information about the responsibilities of the groom and responsibility to the grooms parents then you should certainly look into it and make sure that you are clear in what is expected of you, your parents, and from what everyone else involved. If there is any question as to what needs to happen from you as the groom the need to address these questions with your wife and see what she says.