I want marriage and kids soon but my bf doesn’t?

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I’m 27 and my bf is 24 almost 25. Every time I bring up kids or marriage he always says he doesn’t want kids until he’s like 35 and isn’t thinking about marriage anytime soon. I get that he wants to be successful and financially stable before kids but he also told me he wants to be filthy rich before having kids because he wants to be able to hire people to take care of them..but that’s what I’m here for? And Ideally I’d like to get married in a couple years and have kids in my early 30s. I really don’t want to have to wait 10 years to have kids but also I’m in love with him and totally see myself spending my life with him. He’s also not a US Citizen because he’s from Brazil but it’s his dream to stay in LA and the only reason he’s not being deported right now is because he’s studying at UCLA. My mom always jokes around that he can easily just marry me and then he doesn’t have to go back to Brazil.. Does anyone have any advice?