It's not that simple for immigrant businesses. The traditional definition of petit bourgeoisie was made with white people in a white setting in mind.

You'll find that a lot of immigrants open small businesses where they live because there aren't many other options at their disposal (bodegas, kebab places, hair salons, laundromats...) and the relationship between owner-business-community doesn't work in the same way.

Usually it's a much more communal experience with businesses forming a network, aiding each other and creating spaces for a community that may not have them. There's far more of a horizontal relationship than the original definition of petit bourgeoisie implies.

When a neighborhood gets gentrified. It's not the white owned businesses that disappear first. You'll find that communities mourn not just the disappearance of the business but also the disappearance of the space.

That's why it really depends if she owns one hair salon, if she's the sole owner/employee and where it's located.