Re: Trying to get started
I agree that at around 6 months when they sit it makes a lot of since. I started at 9m so not too much help I just wanted to let you know that you can start out by just offering the potty at diaper changes, especially if you ever get a dry one. Maybe try to change more frequently to catch one. Generally they recommend doing naked time, lay baby on a prefold and watch for signals, remember to make your signal sound if you see them pee/poop.
Oh when using the potty bowl or sink with a little boy I've heard that people learn to aim for him with a finger.
I wanted to EC from birth but just didn't; no real excuse but maybe overwhelmed. I kinda forgot about it-ish and then around nine months I got excited again. If we get to have another child I will give it a stronger try at birth or close to it. But the latest start would be when baby can sit!