Hardly. There are plenty of backup and storage options that do not require iCloud, a larger device, or even a Mac. You can even sync and store photos using Google photos, for example and avoid iCloud for what is generally the largest storage use on a device. Google drive can backup contacts and calendar. Plenty of options beyond just Apple.
I have since my European colleagues use What's App; and some friends FB Msgr though I try to avoid it. The problem is you have to use multiple systems and remember who uses what, and in some cases they use 2 which adds to confusion.