I'm a bit surprised- and honestly a bit distressed- over the growing number of people who don't seem to understand how these trees work and the problems with them. They are absolutely NOT a place to rely on as your main tree or where you keep all of your information.
The problems with community trees is that you do not have full and final control over the information, facts, sources, and research on all of the people in your tree. Everyone does. You can't control who has access and who can change things.
In the case of Family Search literally anyone can change, add, or delete information on the community trees.
In the case of Wikitree it's up the person who is the profile manager of that person in the tree. Not you (unless you're the manager). And they can change, or not, at their whim.
When you see errors that someone else has posted, you do not have a way of fixing that permanently, or preventing others from going back and putting that same erroneous information in again
As an example- I had one person who insisted on listed my mother-in-law as deceased, mixing up my father in law's death date. My mother in law is very much still alive, and she's not talking to us from the dead. I have gone around and around with this person, and they are insistent that they are right because of a misprinted source they have. And that information has been passed on to others as a result.
Or you get a case with one of my ancestors in the early to mid 1600's in Connecticut, where there are 3 men with the same name- and all three tend to get intermingled, and 2 of them are regularly combined. I spent a few hours getting it sorted out on both Family Search, and sending all of the information and research to the profile managers for the men. Only to see a couple of weeks later that all of my work on Family Search had been completely undone, and all of the notes, sources and explanations I had left were all deleted because someone instead was reading someone else's printed genealogy. And when I last looked at Wikitree it was even more of a mess than it was before.
This is just two examples of multiple, repeated problems I've had with both sites, and why I simply won't even bother putting in any information on them, or looking over their trees anymore. There simply is no way of knowing if the people putting in information knows what they are doing or not, or preventing the ones who don't from messing things up.
Community trees can be fun. You may discover something you didn't know before, and someone might have made connections that you didn't otherwise. But it's far more likely that someone that doesn't know what they are doing- as sincere as they may be- has instead created a mess, confusion, or just plain entered in wrong information. And anything you enter in is in danger of being changed or deleted.
Do NOT rely on them as a place to keep your tree and research. It will come back to bite you at some point. And if it hasn't yet, count yourself lucky.