On the topic... if one country in particular had an extremely high rate of fraud for immigration, i would fully expect that country's applications to be scrutinized and personal interviews requested at a much higher level than other countries. So in this case they should be treated differently. Try applying for car insurance... you be be charged very different rates depending on your age, sex, location and accident history.frege said:What if historical stats showed that certain ethnic groups committed more crimes? Should the police treat them differently?
I think you are mistaking the "rights" of people vs "privilege". It's your "right" to walk down a street and not be harassed by the police just because you fit a certain racial profile. However immigration to Canada is NOT a right. It's a privilege that one must earn. Once you submit that PR application, you open yourself up to as much intense scrutiny as deemed necessary by the government in order to prevent fraud.
Having to go for an interview due to a big age difference in partners is certainly not discriminatory. Interviews are part of the regular process and due diligence. Every time the CIC waives an interview, they are taking a calculated risk.
What WOULD be discrimination, is if a VO was following some rule such as "an age difference of 30 yrs or more means automatic rejection". However i'm sure this doesn't happen, and in even the most extreme of age-difference cases they applicant gets to have an interview to state their case. In the end i'm sure lots of rejections are due to the gut feeling of the VO or if some answers seem fishy or staged... and it's several factors together (including age) that leads to a final rejection.