British citizens from overseas have to apply for visa for parents every time they visit. Most times visa is rejected resulting in loss of money and time. Please could parents have a visa that allows them to visit children, they stay for less than 6 months and return, like a multi entry visa.
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Canada citizens have visa for their parents that allow them to visit children when they want. Which means no loss of money time, secondly mentally it can be very distressing if parents are needed urgently or due to emergency and their visa have been rejected both for parents and children away from home.