Why Bother?

I have read it so often. Something that says something like, “You can’t expect different results doing something the same way.”
It has led me to thinking about why I would want to do something the same way, if it does not yield the results I am after.  I have thought of a couple of reasons.
By the same token I think if something done a certain way has been working and yielding the results I am after, then I should not change it.  As a friend used to say, “why reinvent the wheel?”
So what I am considering is, “what prevents me changing the way I do things to yield the results I am after?”
Sometimes I think I can settle for limited success.  I may have seen a smattering of what I am after, and to change would involve more than I am ready to do.  I was thinking it is like I can put up with a certain amount of pain.  I learn to live with it.  I compensate. The ideal may be no pain, but it involves more than I am able or willing to engage in.  Therefore I settle.  It is like they say. “The good is the enemy of the best.”  I am willing to say good is good enough.
Another reason I thought settling for doing something the same way is, it becomes acceptable and comfortable.  It does not make demands.  It is what I am used to.  I may feel a little bit of frustration, but if I am happy to live with that.  Change will not happen.  I am unwilling to step out of my comfort zone.
Also going for different results may involve ceding.  I may not be willing to share.  I act like, if I do not do it, it does not happen.  I act like I am the only one who can do it properly.  Sometimes it means it just does not happen.
One thing I have learned in leaving my job and my being in charge of an organization is that life goes on.  Often what I was involved in still happens - though maybe not my way (and sometimes that is a good thing).  It is hard to admit, but sometimes the best thing is for me to get out of the way as I am holding back others who are capable and keen.  This is especially true if change needs to happen, and I am a gate-keeper who refuses to change.
I reckon I need to be careful that the older I get the more resistant I am to change.  Change may be a good idea despite my age, but resistance to a good idea is never a good idea.
Colonel Sanders was 80 something when he founded the worldwide success that is Kentucky Fried Chicken.  I reckon better late than never.