Even after all these CEC draws, still IRCC were able to find 3K Candidates over 400 CRS score in their last draw. So if they want to send 5-6K invitations per draw next year, they can easily find CEC candidates above 450 for sure.
400 is a pathetic score. "High" by FSW standards is 460+. If one has 400CRS, it means they either have low English skills, or they are 35+, or both. Math was done before but summary is IRCC cannot find 100,000 inlands with 450+ or 460+ score. Let me recite one of my posts to give you a better view;
- Candidate is young, skilled and
experienced (not some fresh grad whose daddy paid 200k CAD to some average Canadian school)
- Candidate lives in Canada
- IRCC meets annual targets
IRCC can only pick two of these at a time. As for your question, with a family of three especially with a little child, you'd need about 200k CAD to survive that whole journey and since you're not going for a top notch Canadian school with an in-demand specialization, you'll run the risk of being unemployed for a long time after you graduate. You'll be faced with the infamous "but do you have Canadian experience?". If you're looking to spend that much money, you'll have much better options in Europe. Education path is truly only profitable for single people aged 20-25, who were gonna get that degree anyway.