VV for kids while parents have SP or OWP is not reason for refusal. Many provinces don't require SP for minors, e.g. Atlantic provinces.
If the child is with a parent who is a temporary resident and has a study or work permit. Child’s passport or child listed on a parent’s passport. The child may have a visitor record. The parent has a study or work permit.Footnote1 It’s recommended that the child gets a study permit, even when one is not required.
https://www.canada.ca/en/immigration-refugees-citizenship/services/study-canada/study-permit/prepare/minor-children.html
Moreover, I have friend in Nova Scotia, who arrived as Student, her husband has OWP and kids - VV.
If the child is with a parent who is a temporary resident and has a study or work permit. Child’s passport or child listed on a parent’s passport. The child may have a visitor record. The parent has a study or work permit.Footnote1 It’s recommended that the child gets a study permit, even when one is not required.
https://www.canada.ca/en/immigration-refugees-citizenship/services/study-canada/study-permit/prepare/minor-children.html
Moreover, I have friend in Nova Scotia, who arrived as Student, her husband has OWP and kids - VV.