Since you are undecided, all the more reason to start at CC. I understand your family’s position about starting at a 4-year school but if you are undecided as to where to go and what to major in and the finances would impose a hardship on you and your family, CC might be the wisest decision.
If you want to be a data scientist, you can start in physics or applied mathematics. In both those curricula you have some computing and you can add in a CS minor to get the skills you need to work in the field. You don’t need a degree in data science to start in the field. What you do need is a good background in science and mathematics and an analytical mind. This is what physics or applied mathematics can help you develop.