To a greater extent, it is addressed to men who marry a woman “with baggage.” The main problem is that the new husband is trying to get closer to his wife's children, to become related to them, to try to become a loved one with the best intentions. And it is impossible to do this in any case, because all these forces will be wasted.
Of course, ideally, you have a wife and - common children. Not ideal, but also not bad when you have a wife, no children of your own, and your wife's children from your first marriage have become like family to you. And it's really bad when you and your wife have children from their first marriages. Let's not be a hypocrite, let's face it - the wife's children from another man will never become closer to you than their children. Yours will always come first, because they are your flesh and blood, your upbringing, your genes. And, attention, your children will always be better for you!
If you don't have children of your own, you will be just curious to appreciate how and in what your loved one embodied his continuation. And there are a lot of options - to love them as your own, treat them like a mother, then give birth to them brothers and sisters, if circumstances permit ... And only one option is possible, if you also have your own children - not to get closer! In no case should you enter into a close relationship, not allow yourself to go, keep your distance, as if on ice.
Why? And because you will compare all the same. His children and him. And yours will win this race very quickly. The puzzle is very easy here. You are the new wife and your husband is with you. So you are better. Accordingly, you are getting better, you are an improved model. If the former wife seemed to him the most perfect, he would not part with her. And naively, believing in your star and in your theory of "Idol is the best", you automatically assume that he sees how you have cool children, just as cool as you are.
But actually it is not.

And no, he does not compare children like you. He just knows that you have little people who are dear to you, and just out of respect he accepts it. At the same time, he knows one thing about his children - he has them.