Colonization, if ever possible, definitely is a good reason

Other good reasons are simply science. There are too many advancements made that would not have happened without going to space. Having satellites is a requirement now to monitor the earth and -if still possible- save it.

Of course there are bullshit projects like star link, dumping hundreds, thousands of tiny shit satellites up on the sky even though it’s completely unnecessary… but that is a rich asshole problem more than a space problem