Money DOES NOT buy happiness. Many very rich people in this world are completely miserable. Money can certainly help buy happiness, and obviously being financially stable helps make you a happier person by not being in need of next months rent check in a big way each month...but it doesn't guarantee happiness by any means.
I agree with some of these main points, but not all.
I don't agree, money does buy you happiness, those people who say they don't need money for living a happy life are simply lying to themselves. If one learns to live their life with the minimum resources that they have and kills their wishes and desires within themselves only because they don't have money, that's a different thing, and I wouldn't call you happy if you do that.
In a world like today where inflation is touching the sky, things are out of reach of a lot of people, you cannot say that you don't need money to be happy since one cannot stay happy if one can't fulfil the basic needs of their family.