Society as a whole needs an attitude shift:
I got married at 23 and had the following comments when we told people we were engaged:
-why are you getting married?
-is it a joke?
-I don't think it's a good idea.
The awful negativity was all due to our AGE (both 23)! We were the first out of any of our friends to get married, most were horrified so we decided to have a small reg office wedding and not invite anyone apart from close family. Nobody understood why we would want to get married so young and people actively tried to dissuade us. At a party (I wasn't there), DH was approached by a girl - she was coming on to him and he said "no thanks I'm married" and she looked at him as though he had said that he was a murderer! Now that we are in our 30s, engagements are congratulated and weddings celebrated! I sometimes wonder if these same people think back to their behaviour when we got married.
Then we had DS when we were 27 and DD when we were 29. Again, people were suprised when we had DS. People who already had children congratulated us but our friends the same age were feeling SORRY for us!!!!!!! I think 27 is the average age to have a first baby (not sure) but the statistics are a bit funny as most people are a few years older or a few years younger than 27 so the actual number of 27 year olds having their first baby is small considering it is actually the average age.
When I was a child, my aunt and uncle suffered infertility and they never had any children - it was not age related infertility, but still it was infertility and I knew it was causing them monstrous pain. I always knew that I wanted children and I did it as soon as I could because I was terrified of infertility. I also knew that MIL and FIL had spent 3 years trying to conceive DH with fertility clinic help. MIL warned me about this loads and loads of times.
Things are different if you meet your partner a bit later on, obviously that can't be avoided. But the negativity assoicated with getting married and having kids in your 20s is astonishing.
I'll be encouraging both my DCs to have children in their 20s if they want to have children at all.
People still make comments about my career but quite honestly I don't think it is possible to "have it all"!