When our grandparents had kids, over 20 was old, when mum had kids, under 20 was young, I had always thought under 25 as young... but now under 30 is considered young! Who knows! Some people live at home with parents until 25-30! Don't even think about marriage, owning a home or that stuff...

I'd rather be a young mum, my SIL is 34 and had her first at 20, mum had me at 18, and another frien has hers at 18, and they all agree, when you're younger its easier to "bounce back" (their words not mine lol) and deal with sleepless nights etc.