Every month, I have to make sure to always pay all my bills. Being an adult, this is one of the responsibilities you have to do. There are several bills I have to pay each month with money I earn from working. They include: my mortgage, car payment, cell phone, TV/internet, electric, and credit card bills. I set some time aside to check what I owe on each bill. The mortgage is usually the highest. Most bills I can pay online by using my computer. I go the the website, enter an amount, and within a few clicks, it is paid for. My car payment doesn't have an easy-to-use online pay system, so for that I use my checkbook. I take a check and write out the amount, who I am paying it to (the bank), and sign my name. I then put the check in an envelope with the bank's address on it, attach a stamp, and drop it off at my local mail box. It's not a long, or hard task, but it's something I must do each month. 
Question: Why do they have to pay bills?
to keep their house, car, lights,and entertainment