Real world achievements usually require significantly higher time investments with systems that are almost entirely beyond your control (no modding support unfortunately) and having something to show will often result in long term responsibilities, many you will never escape from.

At least with games you can save and quit at any time.

Well to entertain the other side of that argument: the real world is filled with cheating and inopporunity. Why waste your time drudging through a world of bullshit when you can entertain or define your own pursuit of happiness? If that happens to be video games, why wouldn't you wish you did more of that?

Many many people will wish that, as opposed to having done better at work.

People will regret missed relationships, events, risks not taking and trips not made.

You’d regret dying without having done anything you really wanted to do.

And observably - very few people truly have their joy aligned with their productive employment.