[19870213]

You're forgetting 'legacy' devices, as in, older than a couple of minutes. I maintain an application that is used in primary education in the Netherlands, and the oldest device thus far with issues is an iPad4 with iOS10.3, which the school only invested in a couple of years ago (I don't know any further details). And in their infinite wisdom Apple fixed the safari version to the ios version, and no alternative browsers allowed. /rant

[TheCoelacanth]

Well, they did say "majority", which would be covered just by Chrome users alone. Granted, most sites aren't going to be willing to write off Safari users, so they are almost always going to be the ones you are waiting on.