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My mom wants to bring her mom and niece to canada for 3 months. Her mom came to canada many years ago however her niece has never traveled anywhere (she's 19). When we applied for the visa my mom’s niece got denied because they're not sure if she will return to their home country after the trip is over although we can 100% guarantee that both will leave when the trip is over. How can we prove this to the immigration officer because we know that you have to show strong ties to your home country but we're not sure what strong ties a 19 year old can have given her age.
please reply with any advice for getting visa approved when we reapply