Because having a preference isnt a choosing beggar. Now, had someone said “well I don’t have thw alpine bouncer but I have Acme Bouncer you can have.” Or “I have an alpine in pink you can have,” and she’d have said “no has to be alpine/beige” THEN she’d be a choosy beggar. This just sounds like a first time mom who did a lot of research on the “best” and so is asking for that. But there’s no indication she wouldn’t take something different