"Generally it is a nice gesture, assuming your sweetheart is close with her parents and that they are relatively traditional. If they are non-traditional, or you are worried they (or she) might see it as a sexist gesture, simply be careful about the way you phrase it. Rather than asking for their permission, ask for their blessing. Situations where you shouldn't ask include if she is estranged from her parents, if she is an older bride, or if you think her parents will spoil the surprise of your proposal. "
I think we should just club them over the head drag them back to our places and they should be ours again like in the old days...