Senior portraits are taken at a time in a teen’s life when they’re about to embark on life after high school. It’s a major life event to graduate from high school, and it’s more than just a portrait. They wanted to be captured in settings where they feel comfortable and in poses that express their individuality.
Things change (evolve) over time. Your current senior images are wonderful. I wonder if in the 60’s people thought their senior portraits were wonderful, awesome, or beautiful? Probably. I make portraits of doggies and go for the 60’s style. If I let them pick the location it would probably be a cow manure stock pile.