[0xbadcafebee]

Another way to put it is, people follow the path of least resistance. If they can still make an old thing work, and adopting the new thing seems like a chore, they'll keep the old thing. OTOH, if they see the new thing will greatly ease their life, the path of least resistance is the new thing.

Of course they mostly do this for short-term personal gains. For new solutions that seem like a chore to adopt and only have long-term gains, they won't want to.

[JohnFen]

Change is painful. It's costly, and comes with risk.

People will embrace it happily, though, when the benefit of doing so clearly exceeds the pain it brings. When you see people resisting change, it's because they don't see that great of a benefit.

This strikes me as a rational position to take.