The adoption of bitcoin by retailers and in everyday life won't happen right now - because bitcoin as it is today does not have the capacity to scale to such heights. Transaction fees are really getting ridiculous.
Having said that - this will change very soon - when things like Lightening network come into play, and transaction fees come down dramatically, we probably will see widespread adoption.
So yes - it's certainly not too late to invest. In the early days people were talking about bitcoins in whole and plural.
Today we're talking about Satoshi's in their thousands.
Eventually we'll probably be talking satoshi's only - which would have bitcoin priced in the 7-8 figures... To be honest I do think this is possible.
agree with you bro. Later on bitcoin will be the face of future businesses, in fact, some businesses right now were accepting bitcoin as payment. CME and CBOE, the two huge firms of futures contract also launched their bitcoin futures recently. 2017 is a milestone for bitcoin impressive run even though it dropped a few days ago but i am hopeful that it will recover soon and surpass its highest record. :)