WhendoIgetadayoff - low carbing is like any other diet, in that it's teaching you about a particular way of eating. If, once you've lost your weight, you just go straight back to eating how you used to, then you will put weight back on.
That said, the purpose of low carbing - weight loss and health benefits to one side - is to work out how many carbs you can tolerate per day. Everyone is different.
Your life won't be without rice/pasta/potatoes/bread. Once you've lost your weight, you gradually start to introduce carbs back into your diet. As long as your diet is mostly high fat/lower carb, then you will be able to have the odd indulgence.
You will find, presuming that you enjoy eating this way, that it does become a habit. I never cook anything different for the rest of the family. I do, though, plan my meals and use the slow cooker/pressure cooker so that I can have things ready when we come home, or can cook things like stews quickly.
It's up to you, ultimately though. If you want it to work, you have to work at it!