If you want realism, Stewart advises you do your homework before buying a ticket. Do some research, seek out the more believable stories. Many operas have more realistic developed characters than some of the stereotypical opera roles. There are many operas that are more accessible to the general population. The sets, the costumes, the whole performance will draw you in.
Opera is very entertaining.
It's fun to go because even if you have never been there before, you will recognize the music or the plots. If you've seen an episode of Friends, you see what is borrowed from LaBoheme. The music is everywhere in TV or commercial jingles. The importance of a movie soundtrack is from the influence of opera. Some of the best operas for beginners have many recognizable stories and music.