I think there was a lot working in concert. The world geophysical year 1958 was a big contributor to much that would follow. and it wasn't just outer space, the seas and depths were subject too. An oversimplification of mine is that the times gave us Apollo and also the Trieste 1 and 2, Alvin, Jacques Cousteau. Rachel Carson and Loren Eiseley. There was an enthusiasm about science and engineering leading the way forward into the unknown becoming known.
I have a few of the astonishing Mr. Science and Jimmy movies from back then (50's I think). Hemo the Magnificent, The Unchained Goddess, and one about our Sun.
It's really an amazing step from all the sources to what we now know, pretty amazing!
In my reading about space travel and colonization there are also references to both the US Army and Air Force studying and planning for small colonization of our moon using the Apollo vehicle 50 and more years ago. This based on the thinking at the time.
So I think your sentence correctly answered "yes" with emphasis on the "used to be" but only in ways. I think the motivations for doing so and relative economics are pretty lopsided when it becomes solely a geopolitical flag waving extravaganza. In the end it's engineering and real science and physics that make any of it possible.
Engineers made it all possible.
When I look at what I consider the current watershed of effort, based on different incentives it's pretty amazing how many companies have their hat in the ring from microsatellites to heavy lift. Not only do we know, but there is a magnitude or more of what we can be certain of in every respect to space travel.
There has been a void in interplanetary space travel, as already posted, that makes some of the belief systems and philosophy seem suspect, but that is an aside from the engineering required to make any of it actually happen.
In that sense, at least in launch platforms, SpaceX imo is an impressive series of success not matched in realty by any other concern. Honorable mention to Blue Origin, but that is all..SpaceX has and are re-writing the book, unfortunately only after lawsuit to be allowed to do so! Reality being that they very dramatically can compete on the payload into orbit cost, this has the Boeing/Lockhead conglomerate (now called ULA) running for the trenches and has upset the 'norm'. They collectively were the previous instrumentality in conjunction with the US Govt.
Microsatellites and other evolutions in LEO orbital technology vehicles offer another strata of 'necessary for the job at hand', this is altering the requirements for the lifting body and so there is also competition in that market.
All this to say manned space travel beyond the ISS has been severely hamstrung, The ISS became a destination instead of being a stopover to somewhere else.