--Use money that you can afford to lose: This applies to both. If one wants to invest in bitcoin, you will be advised to use the money that is not made for other important needs to buy bitcoin. So that going into long term investment can generate you with a good profit. One the other hand if you use the money for your important needs to purchase bitcoin,when the time comes for you to be in need of the money, you will end up selling your bitcoin even though that the price is below what you bought it. You might still end up selling your bitcoin due to panic and this will lead you to lost.
This goes with gambling, if you don't use the money that you can afford to lose,you have paralyzed the fun in gambling,because if you are losing, you might keep on chasing your lost and this will lead to to losing all that you have on you. luck.
Do you mean bitcoin investment?
I'm not sure how you see it, but in my opinion, Bitcoin and gambling are very different from one another. I don't get how bitcoin can be compared to gambling as it can also be used to make online purchases of items. It should be regarded as a thing of value that can be used in place of fiat money, but with the distinction that its value may change as a result of various factors. Instead of keeping bitcoin to try to increase its value, we should start using it as a payment option.
For the majority of compulsive gamblers, gaming is the primary use of their money, and even winnings are still spent for gambling, thus I fail to see why they continue to engage in the activity when ultimately all of their money is lost. Bitcoin makes a difference in this.
--Having the knowledge of it : Anyone that wants to invest in bitcoin needs to have the proper knowledge of it. This will enable you to monitor your investment and to be patient with it,until when the bull market arrives,you can sell if you are okay with the profit that has accumulated. You indeed need the knowledge to know how to secure you bitcoin and the type of wallet,in order to safe guard your investment from scammers and being victim to centralized exchanges.
Likewise gambling, if you don't have the knowledge of the game that you want to stake on,you will end up losing every time that you play. This is because you lack the skill and strategy you need to win the game. For example poker,you will only win on your lucky day,since gambling sometimes is based on luck.
Everything in life requires knowledge, including gambling and bitcoin. However, with gambling, one might be aware of a team's strength and still lose a bet on them. In my perspective, gambling is pure luck, therefore all of your knowledge and preparation may be for naught. which is not the same when investing in bitcoin.