There are reams of economic literature trying to estimate whether government intervention in the market was a good idea. Most of the time it doesn't turn out great. So the parent's suggestion "probably won't be a win for economic output" is a pretty safe bet.
Often governments will use "security" as an argument to keep steel, shipbuilding, etc, in the country. That argument is not really possible to evaluate on economic grounds.
There are reams of economic literature trying to estimate whether government intervention in the market was a good idea. Most of the time it doesn't turn out great. So the parent's suggestion "probably won't be a win for economic output" is a pretty safe bet.
Often governments will use "security" as an argument to keep steel, shipbuilding, etc, in the country. That argument is not really possible to evaluate on economic grounds.