Years ago I wrote in my personal blog a post with this same title. It was about my daughter, who was born 10 days sooner than expected. When she was a bit older would stand at her crib and shake the bars and say, "I'm ready mom!", whenever she wanted me to take her out. Some times that was before I was awake or ready myself. She was in her crib because technically she was still a baby, not quite two, and yes, she spoke in clear complete (albeit short) sentences. She didn't so much speak as EXCLAIM! Everything that child uttered had TO BE WRITTEN LIKE THIS! She was and is still a force to be reckoned with. This same child did not walk until she was 18 months old. She has just grasped a hold of reading, she's 7 1/2 years old. She has to yet conquer a bike without training wheels. She sometimes still wets the bed.
All this to say, my child is pretty much like all other children. She's ready when she's ready. Sure, I can help her. I've spent countless (COUNTLESS) hours reading to her. I've taken her and her bike to the park every dry day we've had. Her dad still wakes her and takes her to the bathroom before before he heads to bed. We do this in an effort to support and train her in habits that we hope (actually we know) will stick with her. The issue is that with all our help and support, she'll be ready when she ready. What we do won't necessarily make her do these things sooner, it will hopefully just get her doing them when she's ready. So if you are banging your head against the wall because you've been potty training forever, relax. It'll click...eventually, when you're child is ready.
Did I mention that my girl potty trained herself at 18 months? Did I mention that after a few weeks of no accidents she announced she was done with potty training and proceed to have "accidents" to the point that for my sanity I put a diaper back on her, something I was vehemently criticized for. At about 2 1/2 years she was thankfully once again done with diapers, this time for good. (Except the night thing)
So if you are feeding your child a healthy, balanced diet, if your child is getting fresh air and a balance of active and quiet times, if your child is getting 10 to 12 hours of sleep, if you read to your child, engage him, love him, then your child is ready. He is ready for anything that comes his way and he will demonstrate his readiness when he's good and ready!