I find that location to be easily findable, there are even two logical paths to the subscriptions page (One through Settings, one through the AppStore).
In iOS, the trick is that you have to tap your name at the top of the settings. If you read every entry in the list you won’t find anything that seems relevant, and indeed, you just need to know to tap the very top of the settings list. Moreover, searching in settings for “subscriptions” returns no result, despite that being the name of the subentry.