You say the problem is that people have not chosen their culture freely, and then propose an elaborate scheme by which parents will be induced to impose your linguistic theory on their children.
None of us are free to choose the culture we're born into, but we're free to choose how to deal with it, and whether to maintain it. "To design a world..." is not a formula for either freedom or true diversity.
None of us are free to choose the culture only but also citizenship, set of native languages, set of lifestyles, set of professions, set of working places, set of creative and other sorts friends and partners and many others important sets of valuable things.
To think honestly and deeply nobody chooses freely anything-impotent things and values what he really need.
I am a social inventor of symmetry of working weeks and free weeks life style.
Every person has a right to work some weeks and the same quantity of weeks he will be free from job.
It means that every man including school children has 26 weeks of creative vocation in a year.
This so called “Fifty percent job time – Fifty percent free time lifestyle” gives possibility to every person in his 26 weeks a year of freedom to learn new languages, new professions, to live in new countries and to adopt to different national cultures and languages.
I call 26 weeks of freedom of every person in this symmetrical life style – GLOBAL NEOSHABAT.
To give GLOBAL NEOSHABAT to every person we will give the really freedom to choose freely not only the bottle of vodka in the shop but all most impotent values in the free individual person life.
Set of languages – is just one but most impotent of those values because it makes a person to live in comfort in every world wide national culture.
Worldwide using of GLOBAL NEOSHABAT life style will solve energy, transport, ecology, and lifelong education problems too.