So my brother is smoking and drinking and vaping but my dad doesn’t know because he’s to scared to tell him. My mom knows but she doesn’t really care and she told me she won’t tell my dad since my brother doesn’t want him to know.

But he is not even 15 years old yet and I think it’s just so wrong to not tell my dad since my dad is buying him a car so if he finds out that he is doing those stuff he won’t buy him one so that’s why my mom and brother doesn’t want him to know. But we don’t have a lot of money so I want to tell my dad before he buys my brother the car.

Should I?