Sometimes I wonder why developers are so masochist with his tools, and so MUCH AGAINST AUTOMATION. If a language, for example, don't have NULLs and you need to

Sometimes I wonder why developers are so masochist with his tools, and so MUCH AGAINST AUTOMATION. If a language, for example, don't have NULLs and you need to use Sum Types (like ML or Swift) you have solved FOREVER and FOR ALL THE DEVELOPERS that problem. But say that just because this is one problem among dozens, then is better FOREVER AND ALL THE DEVELOPERS to stay with the problem? Instead, why not put as our goals to eliminate all the problems that are possible?