Not Wanting Children

I am 16 and I am so tired of people treating me poorly after I say I don't plan to have kids in the future. It is so frustatrating having people think they have the right to tell me what I should do with my life. I have a lot of goals and dreams and I plan to work hard to achieve them. I am happy with what I plan to do with my future. I am tired of hearing "Ha you say that now, you'll change your mind in the future" or "People like you end up having tons of kids for saying that" like life will punish me for saying I don't want kids. There are a lot of people who love kids and are looking foward to having them and that is great but I am not a bad person for not wanting to be one of them. Is anyone else going through something like this?? I feel like no one gets me 🙄