As mentioned above, and IME, not everyone understands this. A lot of the complaints about the UA are "Why do farmers speak Halfling?" Or "That's stupid, why do Gladiators speak Orc? Is WOTC saying all gladiators are orcs?", etc. Its reviewers, "influencers", etc. as well. People don't get that its "optional" and that its supposed to be bespoke. WOTC will have to do it some other way, or somehow make it crystal clear.I completely disagree. There is nothing (IMO) wrong with listing some quick-grab backgrounds while suggesting to people that they can swap out any bit they like. Does anyone complain about the equipment packages? I've never heard it. You can choose to buy your gear, too. Everyone seems to understand this.
Again, IME, when its written down, them's the rules, and people will use the "examples" as "this is how they work, and these are valid choices.", which in the UA, they're really not (they're supposed to be examples).