Do you need an AA before a Bachelors degree?

No you do not. It's a matter of preference. Personally, with the expense of four year institutions today, the community college is a great place to start. It would be much less expensive, better professor to student ratio, more individual attention, smaller classroom size, more family oriented etc. Still, this is just a personal opinion. It's up to you. Do you like being a big fish in a little pond, or a little fish in a big pond? Some students just like that four year institutional environment, but you will pay for it. I teach at both the community college and university levels. In my experience, the students who start at the community college do better in their junior and senior years at the four year institution than those who started at the four year institution to begin with. The foundation you get at the community college is critical.
No you do not. It's a matter of preference. Personally, with the expense of four year institutions today, the community college is a great place to start. It would be much less expensive, better professor to student ratio, more individual attention, smaller classroom size, more family oriented etc. Still, this is just a personal opinion. It's up to you. Do you like being a big fish in a little pond, or a little fish in a big pond? Some students just like that four year institutional environment, but you will pay for it. I teach at both the community college and university levels. In my experience, the students who start at the community college do better in their junior and senior years at the four year institution than those who started at the four year institution to begin with. The foundation you get at the community college is critical.