Its best to have children when your older.
This way you can get about see and do things ie. Travel the world , party, see and do wild things, build a career and a stable foundation for your family.
This way you can share all these experiences with your children, they will benefit in a big way from this and you won´t regret having kids early and being sort of held back.
Kids are brilliant in many ways, but it involves a lot of tolerance and hard work.
25 is a good age to become a parent IMO.