Let's put it this way, in a very extreme way (I make it clear that this is not my case at all): you are a nice guy, you have a company you are doing well with, you both work, you are good at it, and you have managed to get a good position that allows you to live well and make plans and investments. You have a lower standard of living than your income.
Your brother, on the other hand, didn't want to study, works an underpaid job and gambles away all his wages at video poker, at the bar and maybe, he's never been caught, but you know he's not exactly a shoo-in-- ah and he got someone pregnant when he was very young.
Well, be aware that if you do not wish to donate everything to anyone, the one who will enjoy the fruits of your labor will be your brother's son who attends ITIS in the suburbs and loves fights.
In short, I gave an extreme example but the gist is the same....
I am very pragmatic, it is normal to ask these kinds of questions, especially now when it is time to think about it.
With my company it has been 12 years that we have been together and for 5 we have been living together, from the very beginning I had exposed my idea of not wanting children and she has always respected this desire of mine. I am fine with her and she is a great person. Being two guys with a good head on their shoulders, who have always worked, saved and managed economic choices well (thanks also to this forum).
I am the one who started the conversation with her, it all started with me telling her that we were making a mistake....
One evening I stayed and talked with my dad, I anticipated to him the fact that I was considering having a child; he replied that he never wanted to tell me anything because these are personal and the couple's choices, but that in his opinion I was making a mistake. Because, he told me, "you are both good and good people, I respect you very much and admire your goodness but, I say this in your interest, consider that everything you will do, all your plans ... it will be enjoyed by your grandchildren, whom you don't even see. Are you happy with that? They certainly are. Knowing you, I can't understand how he can, someone like you, be so ambitious, logical and not like the idea of having children."
Then he gave me examples of relatives who did not (or could not) have children who were seen by their siblings as the uncles, rich, *****, who, "wait for it shin..."