Debt management

Is there any kind of debt that's good to use? Good debt is Student Loans, Mortgage Loans, and Credit Cards. Student & Mortgage Loans are Installment accounts which is a MAJOR part of your credit report.Credit Cards are Revolving Accounts which is another major part of your credit report.
Should I always stay out of debt? If you are alive you will incur some type of debt. Key thing is to be responsible.
Never get a credit card or take out a loan? While it's certainly possible to do so, you won't have a good credit mix on your report. Creditors use this info to see how responsible you are worth OTHER PEOPLE'S MONEY. If you demonstrate responsible behavior, they will consider you a GOOD risk and won't hesitate to lend you money.