Bike riding

My dad bought the girls new bikes for their birthdays...Zoe's birthday was in March, and Emily and Eleanor have birthdays in May. I hate to admit that Zoe is 7 years old and this is her first "real" bike (she got a tricycle when she was 3). So, the bike that fits her has no training wheels, and she doesn't know how to ride it, so the learning has begun. Her balance has already improved in the short amount of time we practiced today. She got mad at me this afternoon because I didn't stay outside long enough to help her. She claimed that I never let her have any fun...I think this was a result of her staying up too late last night from the new bike excitement, I hope anyway.
We've never had bikes because our driveway is not bike friendly. It is a dirt driveway, it's on a hill, and it has a lot of ruts in it. We live on a road that is not bike friendly, no sidewalks. So, I need to find a place to take the girls to ride their bikes where the ground is level and tarred, and I need to clean out the back of our Yukon XL to fit the bikes in...that could be an all day project!
The bikes came from the store all assembled, but Eleanor's scooter came in a box. I am proud to say that I put the scooter together all by myself...yes I have a hard time following assembly instructions, yes it took me longer than it would have taken Matt, yes I took it apart and redid it many times, but I did it!