Why are people that know me doubting my ability to be a mom one day?

Last time when I saw my family members and my mom's close friends they were bragging about my siblings's relationships and when they are going to have kids and my mom's friend bragged about her daughter and her boyfriend that she just dated and she told my mom that they wanted to have kids one day and didn't mention about me once about my relationship and when I'm going to have kids. Everyone else in my family they did. I'm like nothing to them. I even spoke up for myself and told my mom's friend I am able to have kids one day and she doubted my abilities saying are you sure you can handle it, they are hard work. Saying nothing about saying you wanna have kids one day like she asks everyone including her kids. And there are plenty of people that neglect their kids and are bad moms that shouldn't have kids and I know for a fact what it comes with to have kids one day and didn't mention about me once about my relationship and when I'm going to have kids. Everyone else in my family they did. I'm like nothing to them. I even spoke up tor myself and told my mom's friend I am able to have kids one day and she doubted my abilities saying are you sure you can handle it, they are hard work. Saying nothing about saying you wanna have kids one day like she asks everyone including her kids. And there are plenty of people that neglect their kids and are bad moms that shouldn't have kids and I know for a fact what it comes with to have a kid so it's not fair they are singling me out due to a an autism diagnosis that they don't understand. I even spoke up for myself saying autistic people can have kids one day and can be great moms and she just ignored me and changed the subject. She definitely heard me she's just ignorant and doesn't understand. Why were they like this? They never include me when it comes to wanting to have kids all because of a diagnosis I might not even have.

Why are people that know me doubting my ability to be a mom one day?
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