I know this is tough time This problem happens to everyone as well, children do not listen to the elders until they give up on themselves. Remember your time, you too must have been like this. I know you are worried for them, but I would suggest you to talk them very politely and tell them what will be the consequences, as a mom you should only guide them or teach them what is wrong or right rest you should give up and let them decide what they want to do in their lives. Believe me time will teaches every lesson in life. So do well, always guide best and give your best for children. Stay positive.