Hate people butting in

Why do so many people think that just because me and my husband are having a baby that we won't be able to do anything. I say I want to go to the community college part time everyone says I can't because of my baby. I want to get a job, apparently I can't do that either. Me and my husband plan to get a puppy after the baby get a little older and everyone's reaction "you don't need a puppy you're having a baby" like do people really think just because you have a baby that your life is over and you can't handle other responsibilities? Thats not how kids work they don't ruin or stop ypy life. They don't mean the end of being able to better your life or the end of having little things like a puppy or taking a small vacation. Its just means you have to consider your child and keep them involved. Its not impossible or selfish or anything else of that nature. People now a days are just downers. So to all the negative people I will be taking my online classes, when the time is right I will get a part time job, and we will get a damn puppy when we want to because its our family and out lives and we are very cable of taking care of multiple responsibilities, because we don't see our baby as an end to our fun she's an addition to our lives a wonderful addition