You can ask anything you want. On the other hand, you should realize that your questions convey your state of mind, and anything you say can and will be used ag

You can ask anything you want. On the other hand, you should realize that your questions convey your state of mind, and anything you say can and will be used against you. But that's not necessarily a bad thing: apparently you have a family. If you have a lot of lifestyle questions, and they are a 7 day/week operation, both sides may decide it's not a good fit. A good company will be delighted to hire an engineer (assuming you are an engineer) who asks intelligent questions about the business - it shows that you can go above and beyond doing "your job," and that you are aware that your technical work has a business outcome. You do not want to work for an employer who is threatened by your questions, or refuses to answer (most of) them.