I want other people's opinions please...?

Well I was considering moving to arizona to live with my grandmother for quite a few reasons, it's warmer there, and there wouldn't be snow, and because I loved spending time with grandma as a kid. My grandparents moved from illinois to arizona when I was like 7 or 8 years old. My grandpa recently passed away in April, and grandma has other family in arizona to rely on, (my uncle, and his kids) and a few other family members but I mentioned moving in with grandma, because it's the only way I could afford to move out west to Arizona. My grandma sent me an email with a few things to consider such as if I was okay with staying in her guest room/sewing room & I told her I was, I thought it was a done deal I was moving out their, until I realized my grandma wants to talk with my dad about it, and my dad says she has strong reservations about it, not that she wouldn't be excited to have me their but grandma pretty much suggested going out and staying with her for a month on a vacation while we talked about all this. I thought it was a done deal, that I was moving out their (im unemployed in illinois) so I would have to look for a job and such out in Arizona. I'm really just wondering what strong reservations really means. I mean, I flat out told her that I didn't want to be a burden, is this her way of being polite and saying it may be a burden? She keeps telling me to consider other things like car insurance for a vehicle and legalizing it, considering I would have to sell my car and then buy another one out there, im just worried she will find reasons not to consider it. I pretty much feel like if I don't move out their now I probably won't because once I find a job here, im stuck here. Ya know? Is she politely trying to tell me she would rather not? Or do you think she's still considering it there's just alot we have to talk about?