> This is more an age thing, and it's fixed by experience.

There is a simple trick for that, its called ageism. Good luck finding job in some youngish teams when you are over 50, you need to show extraordinary talent, experience and flexibility to be considered.

I agree with others - people often think they are smarter than others, and smart folks tend to fall into that trap easily, triple that with young age. It works sometimes for some folks and thats it.