My bf says he’ll change if I give him a baby

I don’t smoke weed so don’t know the effects. I don’t know if people can become addicted or dependent.

No, i don’t control his money but lately I’ve noticed my bf spends a lot on weed. I noticed it because he went to a dispensary and the receipt said 100. I didn’t say much. But he spends about 100 a week. I know it’s not my money but he smokes about 5x a day and I’m scared he may be dependent on it. I talked to him about it and he said “why do you care?”

So I figured true. Then he told me “if you want me to change and to stop smoking then give me a kid. Being a father will change me because I’ll have responsibilities and a person to spend my money on”

I don’t think a baby will change him. We don’t even have a place how will we afford a baby. And no I’m not saying he needs to be the only provider. I work too but I feel like both need to be financially ready. I’m not ready so I don’t think he will help or be a supporter with this “addiction”.

Also note: I didn’t say to stop smoking just to cut a little bit of it. When we are out he leaves places to smoke in his car then comes back. We are at a restaurant and he leaves mid meal and comes back 7 min later. I’m literally sitting there alone.