"The fiancee´of a young man is 'saving in order to marry,' would be lacking in taste as well as good sense were she to encourage or allow him extravagantly to send her flowers and other charming, but wasteful, presents. But on the other hand, if the bridegroom-elect had plenty of means, she may not only accept flowers but anything he chooses to select, except wearing apparel or a motor car or a house and furniture-anything that can be classified as 'maintenance.'
It is perfectly suitable for her to drive his car, or ride his horse, and she may select furniture for their house which he may buy or have built. But, if she would keep her self-respect, the car must not become hers nor must she live in the house or use the furniture until she is given his name. He may give her all the jewels he can afford, he may give her a fur scarf, but not a fur coat. The scarf is an ornament, the coat is wearing apparel. If she is very poor, she may have the be married in cheese-cloth, or even in a dress she wears usually, but her wedding dress and the clothes she wears away, must not be supplied by the groom or his family. There is one exception; if his mother, for instance, has some very wonderful family lace, or has kept her own wedding dress and has no daughter herself, and is would please her to have her son's wife wear her lace or dress, it is proper for the bride to consent. But it would be starting life on a false basis, and putting herself in a category with women of another class, to be clothed by any man, whether he is soon to be her husband or not."--Etiquette By Emily Post 1922 ©
My have times have changed! I find this selection from Ms. Post interesting. What is the bride is very poor and she wants a nice wedding dress and her future husband wants to give her that and can afford it. I do not think it is wrong for her to accept it. Just my personal opinion.