Owning a house doesn't necessarily make you reluctant to move to pursue other opportunities somewhere else. Renting or just re-selling the house is always an option.
Also, anything good in your life would make you reluctant to move somewhere else. But you wouldn't say, for example, that having a significant other is bad because it makes you reluctant to move.
Both renting and re-selling are major sources of friction. I'm a first-time homeowner and I find the prospect of moving today far more daunting than when I was still renting, because of these factors. The risk feels much higher, so I need a much greater promise of reward before I'm willing to take it.
Sure, but would you prefer to have your house or to not have your house? Selling your house for free (or more realistically, way under market value) would not have as much friction.
Also, anything good in your life would make you reluctant to move somewhere else. But you wouldn't say, for example, that having a significant other is bad because it makes you reluctant to move.