It's a compulsion for especially some Asian women who are taught that their husband's house is actually there real house and all they should do is please their husbands. Now, marriage becomes a compulsion for them because this is their only way of security and status.
For some, it's a necessity because they don't like to go against the norms of the society or rather they fear what will happen to them when they will get old. Everyone needs a partner so they have to marry.
It's just plain simply beautiful for some because they get to marry the person they wanted to marry and that is simply the best thing that could ever happen to you! Getting to have your loved one in your life forever!