He immigrated to Canada in his forties, and his parents are in their seventies. Can you go with them? How to solve the medical problem?

Yes, sponsor parents to immigrate. People in their forties immigrate to Canada, and the transportation conditions are very convenient. Parents in their seventies can also follow. Immigrant parents can enjoy medical insurance in Canada, but they can't enjoy other welfare benefits, because the new immigration policy requires that the guarantor must promise to bear the basic living expenses for at least 20 years after their parents arrive in Canada.