I think the moon was drug here by a more advanced civilization which explains why the moon is older than the Earth and an eclipse is the perfect distance. If I recall some ancient texts and I can't remember what they were off hand explaining the moon was not always here.
The bit about the Moon being a "perfect distance" for eclipsing is an illusion.
If you look at maps and drawings of the path of any total eclipse, you see a small band for the totality.
For an eclipse, you have to have the eclipsing object be large enough to block the complete sun and not so far away that the apparent size of the sun is larger than the object.
For the Moon, as it is around 6X smaller than the Earth, that means that there is a distance out for both a minimum and maximum distance for a total solar eclipse.
The minimum distance is roughly at the surface of Earth. This covers the largest surface area on Earth.
For the maximum distance, it has to cover an angle as large or larger than the Sun.
The Sun is approximately 93 million miles away, and roughly a million miles in diameter. The Moon is roughly two thousand miles in diameter and about a quarter of a million miles away. Where those two angles meet, the angle of the Sun and the angle of the Moon, there is a point or area where the sun is blocked out completely. That point is on earth located several thousand miles underground. So what we have on the surface is an area, currently about a hundred miles wide, where the Moon does totally block out the Sun. What is happening is that the Moon's shadow is cast on the Earth. There is also a much larger area of partial shadow, where bits of the sun peek around the Moon. In the last eclipse, I was in this partial area. I only saw a 'bite' taken out of the Sun.
Eventually, the Moon will get far enough from the Earth that it will no longer totally eclipse our star. That won't be for hundreds of millions of years however.
The notion that the Moon is some magical perfect distance from the Earth is a myth. It isn't true. There are moons on both Jupiter and Saturn that cast eclipse shadows on both planets.
We aren't unique, and eclipses are normal for any world with both a large enough moon and one that is closer than a really wide orbit.
What is really unique about Earth and Moon is that our Moon is so large compared to Earth. The Earth-Moon system is really a double planet.
Those are quite rare.