I agree you you will find the round rock austin area more fitting to meet your needs. Most suberbs in Dallas are not very diverse and the job market is ok. The Austin area has more to offer in Diversity and culture.
I live in downtown Dallas and wish I had the money to live in Arlington. The neighborhoods are beautiful and the traffic light. For a starting family in your age range I think you would find that Arlington has much to offer. The schools are well noted, the nightlife active, and most of all the crime rate low. I am a 20 year old student and have to leave my car doors unlocked so if someone wants to break into my car they wont shatter my windows. lol, unfortunate I know, but the streets are unbalanced downtown. Arlington is beautiful and safe.
i live in fort worth texas and i absolutely love it. you still get that small town feel but there is still so much to do. if you can t find anything to do in fort worth, dallas and arlington are just a short drive away.
Carolina, what you are describing is Austin, Texas.
Arlington is like the entertainment capital of the state