Most children of SP and WP holders qualify for provincial healthcare with a visitor record. Some provinces require international students to have an international student medical coverage through their school and dependents can be added to the policy for a fee.Well IRCC recommends getting a SP anyways. But yeah, I know my friends kid attended his entire elementry school while on Visitor Record. That being said it is just this school district in victoria which was fine with it.
Having SP helps. Kids then can get a provincial healthcare card. Kids sometimes doing sports get hurt.