That the status supports the family well and leads nowhere by itself. A treaty-investor spouse is employment-authorized incident to status and unmarried children under twenty-one may accompany and study, but the category offers no direct path to permanent residence, so a long-term plan needs a separate route.
Status for the family, not a destination
Families reasonably plan around school years, and school years run past the horizon of a first period of admission. Two facts deserve attention at the start. The first is the age limit: derivative status for unmarried children ends at twenty-one, which for a family arriving with a teenager means a known date on which that child needs her own basis to remain. The second is that renewals depend on the enterprise continuing to qualify, so the family’s stability is tied to the business performing as described. Neither fact argues against the route; both argue for making the permanent-residence question a separate, deliberate decision rather than an assumption.
Hypothetical example: a couple from Roxton Pond buys an established hardwood flooring showroom and installation business in the United States and relocates with a seventeen-year-old and a twenty-year-old. The younger child can study as a dependant for several years. The elder child reaches the age limit within months, and her plan — study in her own status, or return to Canada, or a different category — should already exist. The spouse’s work authorization follows the status. The family’s longer-term position is a question the category does not answer, and one worth putting to an adviser early.