Maybe I'll Come Home In the Spring « Movie from 1971

Dennie has returned from a year among the hippies to her superficial, image-conscious suburban family. She must face their disapproval of her actions. They refuse to even try to understand.

She must also deal with an ex-lover, and a beloved young sister who is following in her footsteps, wanting the idealistic hippie life but making some rash decisions in the process.