Let her do it. If money is an issue, make her pay for it. That will test how much she really wants it.
Every performer has the teacher who thinks it is their job to tell them "You'll never amount to anything." It creates a fire under your ass to work even harder. Everyone who wants to be in this industry should be in this industry. If they really have no talent, they are going to realize that themselves after ten years of not working. Maybe at that point they will find a day job that really inspires them. Or start a family.
Anyone who gives up after one person tells them they can't do it, isn't cut out for this business in the first place.
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