Constellate, fleurie :)
With the aim of optimising our chances of success, it would be to our advantage to create academies of scientific and technical training that would give a course in the optics of serving as marsonautes. The main problem would lie in the selection of students, which in most cases would change orientation after a few years of academic overexploitation.
There could be several schools per country, the ultimate goal being the selection of more than 2300 marsonautes from all backgrounds. For example, as Canada is a very extensive geographically-based nation, there should be more than 3 schools under the Canadian Galactic Academy, to be fair, unless scholarships are awarded.
Since we are talking about Canada, according to the last list configuration, there should be 1/5 of the Commonwealth base occupied by Canadian women, including 1/8 by Canadians men :)
So 17 Canadians females and 3 Canadians males, reminding everyone that women breathe less air than men, for the same intellectual qualities... Unless I am changed my mind, but women's qualities of reproduction are also undeniable (they could have brought their husbands into frozen specimens):()
I would also add, that the candidates in question, currently have the age of 4-15 years, approximately, with a preference for 10-12 years. To return to Canada, how many candidates would we need to meet the needs of the first Marsonautes expeditionary contingent. Well, if the departure is at most 17 years, with a drop-out rate of 10% per year, and a rate of insertion to the starting quota of 5%, 50 students. The current private schools operate with very small budgets, but could serve as a basis for the following calculation:
A total of 16 100 per pupil: $805 000/year, with parental contribution
It may be noted that we will not go far with this, it might be possible to rent premises, in tricentennial institutions being almost middle class:)
One could talk about renting in three colleges located in the range of the vastness of Canada, at a cost of $250 000 per class rented per year. So, 3 multiplied by $250 000 + $805 000 gives $1 555 000 per year, the whole multiplied by 17 years would give 26 000 000 dollars for the entire project of a global envelope for 20% of a Martian base of 12.5 billion with a budget for tests of 240 million. That is, in the end, about 10% of the test phase, which is reasonable.
The program taught in the classes, should be close to that of the regular classes, but with contextual formatting related to the problems of the colonization of Mars. There is no point in talking about Michelin's vulcanization for tires, but rather for the rubber bands of the SAS, for example. The speed of learning will be higher than in the standards widely used in private schools. However, there is no reason to classify someone older with younger ones if the potential for development is present. In terms of physical development, I think it is secondary, with reduced mobility the power of the body will not make the weight against the techniques. It will be necessary, however, unless extraordinary exception, to have good cardio-respiratory capacity and correct mobility, in terms of the landing phases. We could keep the best specimens, in physical capacity, motivations, spirit of sacrifice, and obedience for the spearhead of landings, about 10 marsonautes per base or less. So, with 10% of the 10% of the millionth of 1%, we should have the right people to succeed this Tour de force...
This is not the best place in the text to discuss it, but who will be the first human to put his foot on the red planet. This event is rather rare and exceptional, and will give much glory to the individual or the nation it represents... I personally believe that this privilege should be granted at random, in proportion to the money invested in the project. Thus, it will not be a shame not to succeed this feat, and there will be no race for this purpose, which would have the perverse effect of squandering the money of the project, therefore of the people.