It's been over four decades since a human being set foot on the Moon.
There will be no humans on Mars in our lifetimes.
There are a lot of obstacles to overcome to make a successful manned mission to Mars happen.
First, you'll have to get there. It means a fifty-million mile trip through interplanetary space and keeping the crew alive and the spacecraft functioning. And radiation exposure once the astronauts are out of Earth's protective magnetic field. This will take a minimum of six months.
Then you have to land a craft on Mars (which we have done), and then launch it off of the planet (which we haven't). And the astronauts would probably have to stay on the red planet or in its orbit for several months or well over a year as they wait for the Earth and Mars to realign on the same side of the Sun.
And then we're looking at another six-months in interplanetary space.
That's a lot of food, water, and other supplies that will be needed to keep a crew of however many alive.
The Moon, by comparison, is only a quarter of a million miles from Earth at all times, and planning a jaunt there is a cakewalk compared to Mars.