I am just curious why you need to request others to buy Bitcoin. Because you can buy Bitcoin yourself for any amount. It's not necessary to buy a full bitcoin. So you don't need to think about the 50/50 scheme when you intend to invest in Bitcoin. I assume you don't have enough proper knowledge about how Bitcoin works. So you need to study a bit more. I will advise you to spend more time on the forum and read as much as you can, especially related to Bitcoin technology. It's true that if you can't take a risk in crypto, you won't be a gainer at any point. Crypto isn't for panicky people.
If you are a scary cat then you would probably be at lost after the long run of everything because scared people that go into crypto tend to do rubbish and end up regretting and causing maybe others that even showed them or told them the idea. The advice you gave is probably the best because reading and studying on your own is actually the best way to learn and go about things when it comes to how the whole system works.