Canada don't care much whether immigrants are "productive members of society". You're free to spend your money in Canada, and as an immigrant without a job, you

Canada don't care much whether immigrants are "productive members of society". You're free to spend your money in Canada, and as an immigrant without a job, you won't benefit from much welfare and such. The only thing they care about regarding work permits is wether the job the immigrant will occupy could be filled by a Canadian citizen.