In order for the English-speaking population to be aware of their rights, there must be figures to show that a certain proportion of the population is entitled to the certificate of eligibility. Especially in rural areas, sometimes people are not aware that they have the right to follow the same path as their parents. This is because their friends usually attend a French-language school.
The right to having access to schools is not always used and, as Monsieur Beaulieu pointed out, under normal circumstances it is grandfathered, but people are not necessarily aware of that. If there isn't a good statistical basis for them to be encouraged to understand that, very serious erosion is possible.
Also having the data collected would enumerate the number of potential candidates for an English school who are excluded by the current rules in Quebec, which, as we know, are a temporary provision that is not only in violation of the Canadian Constitution, but the Quebec charter of rights and the Universal Declaration of Human Rights as a transitional provision to protect the French language in Quebec while it's at risk. We would contend that is not a permanent condition and that at some point the conventional civil rights of the society that ought to exist everywhere be returned.
Enumerating the quantity of the population that would affect would be quite useful to that debate, particularly if that population isn't that large so it doesn't look like a great demographic shift that's going to wreck or put at risk the future of the French language in Quebec.
The data could be very useful to us in getting the population to understand its rights and in the constructive debate about what the rules should be going forward.