From what I read, you can't edit a town as in add/remove lots and saved games won't be like TS3, it's more like TS2.
The Sims 2 saves were better. It meant we didn't have to "change active household" each time we wanted to play a different family.
And yeah, not editing a town was pretty much self-explanatory when you look at the neighbourhood. .
They are offering modders the ability to build their own world, but you can't edit EA's pre-made ones.
Giving birth looks like such a no event in comparison with TS2, tho. I miss those cinematics in global, tbh.
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I'm playing TS2, my male teen WooHooed his sugar daddy and one of them got pregnant.
Then my game crashed.