What would be the top things you would advise on or suggest to someone whos thinking of buying BTC?
Mine would probably be;
1 Before investing, spend time learning about cryptocurrencies and blockchain in general
2 Dont look at it as get rich quick scheme, but as a long investment
3 Learn ways to keep your bitcoin safe and secure.
I think all your answers are the most common answer to anyone with a situation like that. Anyone who has experienced trading or investing more or less than a year in this market would still give the same advice because they've witnessed the others or their own mistake when they go full time. So I would do the same but perhaps I will add things like you must be prepared to losses and also don't put everything on it like your life savings.