Ever heard the phrase 'you get out what you put in'?
Travel can give you most of the benefits most people claim it does without you actively trying because of how it forcibly takes you out of your comfort zone. But if you show up just expecting it to change you, or even worse; challenge it to, then you won't get anywhere near as much out of it.
I expect that your own experiences are more a reflection of your attitude towards it than what most enthusiastic travelers (including myself) claim it does.
Travel can give you most of the benefits most people claim it does without you actively trying because of how it forcibly takes you out of your comfort zone. But if you show up just expecting it to change you, or even worse; challenge it to, then you won't get anywhere near as much out of it.
I expect that your own experiences are more a reflection of your attitude towards it than what most enthusiastic travelers (including myself) claim it does.
You get out what you put in.