Is it the duty of the government to preserve a nation's traditional values, or should that be left to individuals?

I think it is the duty of the individual to preserve a nations traditional values

Not at all. A government enforcing a particular national identity or traditional values often leads towards fascism.

Governments should preserve a nations traditional values as long as none of them are harmful or outdated Preserving such values keep a nation and its people stronger and more independent.

The government should preserve our culture and history, but not that is discriminatory nature. Countries should continue to grow and develop with the future, but also retain some of their past.

The duty of a government is to protect its citizens, and preserving a nation's traditional values may not always do this. Ultimately, nations must be allowed to progress and change without a need to hold on to archaic values that will not necessary align with everyone's values. The government should not protect a particular set of values, but rather the health and safety of its citizens, and the safety to live life freely and celebrate diversity.

The individuals should be left to uphold traditional values

This should be left to individuals as their is something called free speech although the government in their best efforts is attempting to take this from the people

Preserve a nations traditional values by the government

I think both should work together, rather than the duty be assigned to one or the other.

It should be left to the individual to decide. If a government attempts to uphold traditional values by force through legislation, then it can realistically only lead to oppression of progressive values

individuals. Government should always be pushing for progressive change

Government often has different views - should be left to individuals.

It should be left on the individuals as government have different views, e.g. Indigenous peoples preserving sacred sights.