why do protesters always come no matter what?

[Master Pi]

if your animals are in bad mood, they will come but i get them all the time, even when my zoo is fine

[Beastmonger]

protestors are signal that there is a problem in your zoo and oyu need to fix it... just click on them and find out why they're in your zoo and fix animal welfare

[Meewec]

they probably showed up while an animal was stressed but didn't get to the habitat until after it had fixed itself

[grampers62]

Hmmm... Most of all, don't stress over it.

No matter how good a manager one is protesters can eventually show up in one's zoo. Just as was said before check out why they came and assess for yourself how much an issue it is. But more often than not protesters are indeed a sign that something isn't well with animal care and the manager should be working on that issue as soon as they become aware of it. Seasoned players generally have less issues as they have seen these and plan ahead with design and management but newer players will need to learn what went wrong so they may find ways to prevent protesters in the future. So be patient, study the issues and plan ahead next time.

But most of all, don't stress over it and have fun.

[audiolady]

You wanna know how to REALLY have fun with these protesters, especially if they're protesting nothing? Place a ticket gate in the middle of the habitat they're protesting, or any other habitat, then add 1 piece of path, add protesters, and voila! No more protesters!
I do this a lot sometimes. They'll protest for no seeming reason.
But yeah, check their thoughts to see WHY they're protesting. I've had situations where an animal was injured before, but didn't know it til protesters showed up.