Children

So this morning at breakfast my boyfriend of about 2 months casually said he doesn’t want kids. He said he decided this like a week ago. He’s 23 and I’m 20 so I’m obviously in NO rush. I don’t want kids until I’m closer to 30 but definitely someday. We’ve talked about kids before though. We’ve talked about names and he’s said “I feel like I’d be a really good dad”.

He didn’t understand why I was surprised and frustrated that he suddenly has declared he doesn’t want them because obviously that’s a deal breaker moving forward. He said he feels like having kids is what he’s “supposed” to do but something he’s realized he doesn’t necessarily want. I don’t really think it’s a reason to break up right now because that’s far off but i don’t want to date for years and still be in this position. I’m not sure if he’s just having a 23 year old man “I don’t want to grow up” crisis or what. Does anyone have advice? Do i wait for him to grow out of this phase in hopes he’ll change his mind again or do I quit now? I really like him and everything’s going great so I’m not sure what to do.