I suggest you to not continue you plan to make a faucet. It's not that profitable anymore unless you want to take a risk of having it run for long term so that it can established a good name in the bitcoin faucet world. You will just need a decent capital here.

If you want your brother be part of your plan, better explained to him instead the profits you will get just by holding bitcoin. It's way more better than creating a faucet. And while holding bitcoin, take time to learn what bitcoin trading is. Start from the basic and never jumped studies. Im assuring you it's worth a shot although it will takes time.

I won't bother to give an opinion about your project to start your own sites, do what you want.
There are plenty of questions about how to explain bitcoin, that's why there is bitcoin news already before you've planned to make it.
explain about bitcoin as digital currency, your brother may interested about how bitcoin growing as time goes on and that's why worth to earn bitcoin. And then, explain about bitcoin advantages such as global transaction as easy as sending an email, low fees, decentralized and so on.

Apart from that you also need to have good traffic on your website as it will determine your profits and if you don't have enough people visiting your site then you cannot expect to make good profits from it and you also need to spend good money on promotional activities to attract more and more users towards your site.

This is not the only problem... You will also need a very good marketing to compete with existing websites, and there is a lot out there. It is also necessary to take all security measures to prevent your faucet from being hacked, or that someone uses vpn or the like. If you do not have the necessary technical skills, you may need to hire a professional to help you with this.

I think the faucet now less attractive dude, plus now most players faucet using fraudulent means such as using bots, I have several times had a faucet sites but always do not benefit because of too many bots that roam.
For news sites I think it could be a good option, but we know it's a lot of interesting news sites like. Essentially you have to make your site as attractive as possible by presenting writers who already know about bitcoin. And it is not cheap I guess.
For your brother I think he should first understand the advantages and disadvantages of investment in bitcoin, so that if one thing we do not want the case then he will understand. Thank you

you can ask your brother to sit down together in front of your computer in your room while you can explaining about bitcoin from the first time you know bitcoin. it is better if you can explain with open your browser and continue to explain one by one that you know, i think your brother will ask you and you have to answer the question properly. i am sure that if you correctly for explaining, your brother will be interesting in bitcoin and finally he will help you to give the money that you need.

Actually if you have a good skill on SEO you can do it with zero capital
Starting a crypto realted site from zero is indeed not easy to monetized
But if you insist to ask for starting capital to your family and how to introduce it
Just simply ask them to try have bitcoin , spend it and then you can explain properly.

I think that is the hallmark of a bitcoin is anonymous and decentralized it makes bitcoin different than third parties or fiat alone. maybe it could make them interested in bitcoin

Thats truly a good suggestion, at the same we need to know about the person whether he is knowledgeable or not. In such case only highly knowledgeable people can involve into creation of coins for a better profit. But with faucets anyone can earn easily without much difficulty and skills, lot time is required to be spend.

Well creating a coins really requires a skills and knowledge from it. Also i could recommend faucets for newbie but just to learn what really bitcoin is and how hard to earn it well after that if he/she stays to find another method to earn more then that is the time to reward the method the he/she could earn more if he/she is not lazy.