i rarely visit Youtube to learn about bitcoin myself but since a lot of others do it, that can be a good service to offer people.

these are the topics i would cover in that order:
1. a simple and short explanation of what bitcoin is as a decentralized currency while avoiding any kind of technical explanation or even mention of mining and things like that. stick to use cases and how to use.
2. a more detailed explanation of how bitcoin works, some hits at mining, general information about cryptography and how it secures bitcoin,...
3. explanation of bitcoin characteristics and mostly differences of it compared to traditional currencies and payment systems (reading the first page of Satoshi's paper can help with this)
4. now we start with "how to use bitcoin.
4.1. what is a wallet, what it holds (private keys not coins)
4.2. what are different types of wallets and how to choose one.
4.3. general security guidelines to keep a wallet safe.
4.4. explanation of fees (eg. it is calculated based on size not amount) in two steps: a) using the wallet to set the fee/byte b) using other tools if your wallet isn't doing a good job
4.5. maybe cover LN wallets too
5. some general information about how to buy bitcoin and the risks of trusting centralized exchanges
6. introduction of some merchants and basically what you could buy with bitcoin.
7+. depending on your own knowledge of bitcoin and interest of your audience you can always cover more advanced topics too. eg. cryptography, bitcoin script language,...