Two reasons:
1) The missions now are unmanned. Too much reliance on automation and software and...
2) S#!t happens
Just women?
or we’ve never been to the moon which would explain why we haven’t been back....don’t you know that technology goes backward?....that what was apparently accomplished 50 yrs ago is just too hard to do today....
1) The missions now are unmanned. Too much reliance on automation and software and...
2) S#!t happens
More or less true. The Soviet Union achieved the first "soft landing" of an unmanned spacecraft on the surface of the moon in February 1966 (i.e., Luna 9). The U.S. accomplished the same thing (i.e., Surveyor 1) in June 1966.
But there were failures along the way with these unmanned controlled landings, particularly on the Soviet side. It's not all that easy to do. But it was accomplished, multiple times, decades ago, albeit (as you alluded to) with rather different technological resources.