China's space station will fall out of space this week. They lost control of it some time ago, so it's uncertain where it will fall, but it's most likely to be in the ocean.
I remember when Skylab dropped and that was much bigger. Space is already full of junk and those putting stuff up there really ought to ensure they can deal with it properly. They are supposed to have enough fuel to have a controlled descent. For geostationary satellites they get pushed out of the way to a 'graveyard' orbit at the end of their lives. Some of these are using electrical propulsion systems now, so carrying extra fuel is less of an issue.
Meanwhile experiments are ongoing to remove space junk. The latest uses a harpoon to capture items and pull them out of orbit.
The movie Gravity showed an extreme scenario where the junk could escalate and threaten astronauts, but even tiny particles are dangerous when traveling faster than a bullet.
If space tourism every takes off its going to get really busy up there.
Of course flat-earthers won't worry as they don't believe in space travel. One did just go up in a rocket to look at the Earth but didn't get anywhere near as high as a regular passenger jet. He's lucky he didn't kill himself.
Steem on, and watch the skies.