It depends.
Every major character in this game has at least two potential paths to go down. With Evelyn, it's the porn star/super model route. With Alice I don't know the precise routes as yet as IMO she's not quite a major character -- yet.
IIRC, Evelyn going to college is not a bad thing. The photoshoot is more about Alice and her future than Evelyn, as MC has the choice of completely torpedoing her career and marriage vs. using it to bring Alice and William closer.
In other words, the photoshoot itself isn't a bad thing, it's your decision as MC what to do with the photos.