Love, mentality, single mentality?

My family, mainly my mom and my sister are always making remarks about how I will (without question) have kids, noted that I never plan to. I'm not offened by any of that, my little brother had a kid, now my oldest sister is about to. The question surrounding all of this is the way they say it. Example: " I don't want kids" (the response) Mom/sister: " yes you will...., I use to say the same thing, think the same way, (or randomly quoting) you're gonna have the most kids out of all your brothers and sisters"/ I don't believe in love, and it's not due to any sort of depression. I've had past relationships, they went normal. What's so hard about being alone?