Most people were never given the opportunity to care.
Or are you suggesting that by the time they are in the Navy, it's after the age where one might be most easily encouraged to care?
There's another aspect to it, though — parent was in a navy ship, surrounded by sailors. That's a very specific population, in a very specific situation, and it's not necessarily true that that's the right crowd or situation to care (though it baffles me how a sailor at sea might look up at the stars without being in awe of the thought "damn, my predecessors navigated based on those")
I would argue that probably not looking up all the time at night with predators around was an evolutionary trait though! (Semi joking)
Some pictures: https://milieufederatie.nl/nieuws/6-op-de-10-nederlanders-wi...