OP it is by no means daft to want these things at 25 especially as you see so many friends with kids.
It is ok to want that. And it is ok to feel a bit left out. At any age.
And I totally get where you are coming from if you have a pattern of failed rs because the men have let you down or been wrong for you. You start thinking how many times do i have to wade through failure to find success and each failure is hard and it is harder still to throw yourself back into it with an open heart. Sometimes life is just like that. And it is a bit cruel and unfair and you are bound to feel it. But these are also successes. You sucessfully dodged a trap.
There are several buts here and they are all very significant
First a massive well done to you for spotting that these men are not right, for seeing the red flags and for not just having kids with one of them because it would have been easy.
Secondly, life goes through many phases. There are times when you have kids and they consume a lot of your life (they return it with love) and times when your responsibilities lighten and you can pour your energy into other things. If you have kids young that time comes later, if you have kids later then you have that time before. but whichever stage you are in, make the most of it live your life, enjoy your freedom and when you have your kids hold on to every moment of it. When you do have your kids, you will have all the experiences and all the things you do now with your childfree years to bring to it and to tell them about. Enjoy it. Make the most of it. Find other people who are also childfree and who can take advantage of it to go out, travel, take up sports, learn new skills, grow, develop, enjoy being able to spend your money and yet still create a secure future etc. ( and enjoy your house that you own now before someone draws in crayon on your walls, wees on your carpet and sticks jam sandwiches into all your entertainment equipment)
Your friends who have kids probably look at you and wish they had some of your freedom.
And even better when you do have kids your friends who have dc now, their kids will be old enough to babysit for you.
But if you feel you have a pattern of bad rs, consider the freedom programme (you can do it online) and/or reading Lundy Bancroft why does he do that. Helps you sort the wheat from the chaff.
Good luck. Make the most of life. Enjoy sleeping at night while you still can or else enjoy staying up all night because you want to not because you have to!
You are off to a great start already.
It will be.