Is it better to "decide" for college apps?

Applying to College
1

So, I’m a STEM person, but not much more specific than that–I’m definitely still undecided, as I love everything in the acronym. I honestly don’t know what I want to study more specific than my usual answer of “something sciency or mathy”. I legitimately enjoy and could see myself doing almost anything in that area, and precommitting kind of stresses me out. (I’m trying to avoid schools that admit by major/make it hard to move around.)

Due to availability in my area, though, my STEM extracurriculars are somewhat weighted towards one specific subject. For elite colleges, particularly ones that all admit as undecided anyway (meaning no binding commitment to the major I choose), would it be be better to list a major close to that subject so that my listed extracurriculars “support” my intended major, even if I don’t really intend it over anything else?

I know my major wouldn’t be a “hook” or anything, but I’m wondering if it would be best to just pick something that “seems to fit” with my schedule and activities, so it doesn’t look like I do them for no reason/so I seem less generic and incurious.

More generally, is there any bias in admissions for choosing undecided?

2

"More generally, is there any bias in admissions for choosing undecided? " No. They want successful students (and their tuition and fees!). Since the majority of kids switch majors, it’d be a foolish strategy to make a criteria the stated preferences of 16-17 year olds.

3

No, there is not. Colleges know a 17 or 18 year old high school senior probably will change their mind about what they want to study. It’s just to see where your interests lie currently.
That being said, many schools allow you to state more than one academic area of interest in their common app questions section.