Ideally, your beer needs to age. Set it at pressure for your desired volumes of CO2 and wait. Generally, the beer will carb in 10-14 days but the beer needs more than that to properly age.
Then again it is homebrew so drink it whenever you want.
You make a great point. Some beers, like my APA or even some of my IPAs are ready to drink in 4 weeks. Ditto lightly hopped beers like my Dark Mild, ordinary bitters, etc. I was talking to the head brewer at one of the best breweries in our state and they are grain to glass in less than 3 weeks.
Sometimes, like today, I had to force carbonate quickly to bottle some beers for a competition 2 weeks from now. The beers will condition in the bottle, but they needed to be carbonated now. But I also like to have my beers carbonated while they're conditioning. It's interesting to me to taste the beers through the various stages of maturation. It's educational and fun. And since I brew 10 gallon batches, I've got plenty to experiment with.
These different techniques are our tools. It's up to us to use to choose the right tool to achieve the desired outcome given our constraints. Like Joe Sr. said, "Do what works for you". I couldn't agree more.