Oomis1105, what about a man (especially, a bochur) sitting next to other people’s wifes who are very or very,very mekushat (fancy sheitels, lots of make-up, fancy outfits etc.)? “
When was the last time you noticed that happening at a wedding? (btw, the correct Hebrew word is Mekushetess, as mekushat is loshon zachar – just sayin’).
And if a man is sitting with his own wife at a mixed table, it is highly unlikely he will have the opportunity to be staring at someone else’s. But if he IS, that is HIS failing, for not learning a little self-control. As to sitting NEXT to another woman, that is easily remedied by only men sitting next to each other and only women next to each other, except to their own spouses. So I sit next to my husband, our male friend sits next to him, his wife sits next to her husband, the next wife at the table sits next to her, her husband next to HER, and so forth.