What important things does a 20-year-old need to know about money and finance?

How to manage your money , it's really important to teach our kids

It is not the age that matters, it is the circumstances.

For a twenty years old per say, there is no value for money and finance provided if he is from rich background, but on the other hand if a twenty years old is employed and having responsibility on his/her shoulder, then of course, he has to think accordingly, how to deployed available funds, economically.  

20 years Old need to Know about Money and Finance are following :

1. Bank Account Opening

2. Debit Card / ATM and how to use them

3. Online Personnel Account

4. Saving

5. Education is a Long Term Investment

6. Knowledge is an Asset

7. Zakat and its Ruling

8. Avoid Debts

7. Interest and Islamic Ruling

8. Tax - Briefly (Based on Country)

1. Work hard
2. Save money
3. Have no debts
4. Get proper education (Education is the future)
5. Make sure you don't spend money on unnecessary things