Plenty of information on mums available in Australia, not so much for dads. The average age for first time mums in 2020 was 29.7, with the largest proportion (38%) between 30-34 years old. Anecdotally, I was a first time dad at 34, and my wife at 36.

I assume you’re asking for anecdotes, not hard data. I’d say most first time parents are early to mid 30s where i live. My immediate vicinity is full of people with advanced degrees and most of us are in tech/pharma/medicine/academic research.

Oh, man, that is a FANTASTIC question. I have no idea.

On average, as of 2016, 26.3 years for mothers, 31 for fathers.

https://www.nytimes.com/interactive/2018/08/04/upshot/up-birth-age-gap.html

Without a college degree - 23.8
With a college degree or higher - 30.3

Here’s an interesting chart I found:

My husband and I were 26 and we are the youngest we typically come across. Most were closer to 30 or in their 30s.

Very anecdotally, but just from looking around and the people I know, it would look like a bell curve with the peak in the mid 20s (say 25) and a pretty good percentage of them being around eight years either side, and a tiny few further out in both directions.

Based on friend groups in Virginia and North Carolina, most of my peers started having their first kids between 28 and 38. I had mine at 35.

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