Your question is wrong one because all people on Earth only can buy bitcoin, but no one can acquire Bitcoin. It's decentralized from code (open source), developments (from a decentralized developer community and any protocol must be supported by community dominantly to be activated on Bitcoin blockchain), to hashrate and full nodes.

Newbies can start with learnmeabitcoin.com for beginners. It can help them to understand Bitcoin in a comfortable way and it has a search feature, that allows newbies to selective search what they want to learn.