I can tell you, sweetie.

Lonely, when I was around 5 or 6, I faintly remember my father beating my brother because he found out my brother was smoking. My brother is 16 years older than me. My brother still smokes, and I don't know how to talk to him, because I care for him and I want him to stop, but to him I am just an insignificant child he has to provide for. I don't know how to approach the matter, and I REALLY want him to stop. Could you give me some advice?

There is really no advice you can give to him to make him stop, you can try he will say that he will stop but he will still smoke, im a smoker myself and i know the addiction, its type of stress relief thing but you can quit when you feel like it, i assure you if your brother sees that there is smth wrong going on or he has chest pain or smth milder he will stop :)

But everyone is afraid of him. Nobody will ever say anything, and I think if I just tell him I love him and care for him, it could make a difference.

You can tellhim to try nicotine gums

My mum's friend died of cancer a couple of weeks ago. It was very sad seeing my mum. She was devastated.
I got to talk to her friend a few days before she passed away. She was being so nice with me and telling me stories and how she met my mum and dad. Her voice didn't sound normal and I asked my mum why. She said that her friend had cancer. I cried. So I told my mum that I wanted to talk to her again another day.
I came home from school on a friday hoping to talk to her friend again, and my mum told me the sad news. I promised myself that I'm gonna do something to help.

I wish cigarettes were banned. They really ruin people's lives. It's so sad hearing these stories. I wish there was cure for cancer. When i grow up that's what I want to look for, a cure for cancer. I hope nobody has to battle cancer again. It's so awful.