What does being a hair model involve?
What they are usually looking for is someone the trainees can use for practice. I haven’t known them to pay you, but you can expect to get your hair done cheaply. You can expect the student to be a lot slower than an experienced hairdresser, and may have to wait at certain stages for someone to come along and check what they are doing, eg bleaching/highlights. The student will probably want a lot of photos of the finished result from all different angles for their college folder. They might want to take some photos in progress. They are unlikely to want to do anyting to way out, but that would be discussed with you at an early stage.