Maybe 80% of all people out there heard of Bitcoin already. Because of news, media and so on.
But maybe only 0.001% of all people out there are really dealing with Bitcoin. Because of its volume (if you want to deal with it, you usually want to own at least 1 whole BTC, people don't know it can be split), complexity, fear,...
If you consider, the value of BTC (not the price, price in FIAT is not a measure for BTC) with 0.001% adoption. What it would be with 1%, or 10% adoption?
One of the main issues for wider adoption is its basic unit - 1 BTC. If traders, media,... started using smaller units like 1mBTC, 1μBTC, 1nBTC, 1pBTC (as adoption would grow), it would help much.