My tree is private because of a glitch in ancestry when I first put it on line as public and checked it to hide living people and it did not. I started getting emails from people who asked me to take their information out of my tree because they did not want it on the internet. Every person in my tree showed up on ancestry so I will never make another public tree. That being said I have only one time refused to give somebody information and it was only after I had shared information and asked her to fill in her family for me which she never did and 5 years later had the nerve to ask me again for information on somebody and I told her no. I am willing to share anything I have even photo's but just don't ask if you are not willing to share in return.