Advice needed?

Me and my girl, both 22, have had this discussion about our future preferences.
She doesnt want added responsibility and want to give up her independence in terms of having a kid.
She feels there are more reasons not to have kids in this world than to have em and would only ever have them if that instinct occurs to her some time in the future, which i personally feel is entirely fair
While i feel i would want to experience that given that we can afford to manage that.
The difference has casted a lots if doubts over our future though its too far ahead in future. She feels im choosing something that doesnt exist over her and i feel if i want a kid and she doesnt, ill be deprived of something which might be huge for me. What should we do?

Is ending the relation at this stage sensible? I dont know how and what i am going to prioritise in the future and if my desire is ever stronger and hers is not, this might not work out, but that is still at least 6-7 years down the line.
How do we deal with this right now?