No, Google Play is not coming to every single ChromeBook
In Google I/O 2016, Google also talked about ChromeOS. As expected, Google Play is coming to ChromeBooks, but there is a problem.
Google Play will be given to Acer Chromebook R11, Asus Chromebook Flip, and to Google Chromebook Pixel (2015) next month. Other devices will take the update later in this year. However, if you have a ChromeBook from 2013, your computer will not take this update so that you will not be able to use Google Play on your computer.
If you have a ChromeBook which’s hardware goes back to 2015 or late 2014, it will probably take it. Also, of course, new models will support Google Play.
Via – GSMArena