Yes, in my personal opinion it is not too late to invest in cryptocurrency now. 

Of course the earlier you get in, the more gains you'll make. But there is still huge potential for the cryptocurrency market - the driving force is the revolutionary blockchain technology. The blockchain technology has not yet reached the stage of mass adoption. When it does, eventually, the market will be just explosive.

I wrote this in an earlier Steemit post (https://busy.org/@joeylim/how-do-we-react-to-new-technology):

If you had told the people back then
that the world's storehouse of information
can be accessed with a click of a finger
(just Google it!),
and that they can send free text messages
instantly received by another party
thousand of miles away
(Whatsapp/Telegram me okay!),
they might have laughed at you.

"Well, that's hard to imagine,"
they might chuckle, hiding an amused smile.

We are not any different.

Try telling someone, anyone,
about the blockchain.
Try telling them about Bitcoin and Ethereum -
and the technology's revolutionary power.
Try telling them instead of posting on Facebook/Instagram,
post on Steemit and they will be rewarded.

"Well, that's hard to imagine,"
they might chuckle, hiding an amused smile.