Deal breaker? Dating a guy with no kids

I recently (less than 6 months) started dating a guy who is 30 and has no children. It sounds great right? But when I go to meet someone I normally try to meet someone who has children of his own, because they are able to understand what being a parent is like. I have my own place, car and career and so does he. I love him and he says he loves me too but he needs time to think about what his life would turn into if we became more serious (moving in together). He shows little interest in my kids and says he thinks it would be hard for him especially since my kids aren't his and that it will affect his life dramatically to get deeply involved. 

We have a very good connection and everything is going well. But I'm just not sure I want to have more children and I'm certain he wants one or two of his own. I'm mostly afraid to be left alone with 4! Instead of the 2 I have now. 

We have spoken about it and I have told him my concerns about it. The reason I say he shows little interest in the kids is for example. When the kids are with me and he calls he asks me how I'm doing, he rarely asks about anything pertaining to them, if they are brought up into the convo it's my doing and I sometimes feel that he lacks interest. 

I have told him that if this is too much, then he needs to step aside and give someone else the opportunity to be with me and enjoy everything I have to offer(including my kids).  He has told me that this is not what he wants to do but he just doesn't understand what goes into dating someone with kids. 

He said the best thing for him is to see a psychologist and get a different or clearer perspective on this. Then make a decision. 

He is a very good guy, everything about him screams "this is him!" It's just this one things that holding me back. I live in a country without my family and a different language from my own. And the other day I got sick and he dropped everything. he took me to the hospital and didn't leave my side for 4 days! Took me home and is still making sure I'm ok. But.... this one thing... I just don't know 😕

Should I end it or give it a chance?