Anyone who uses money that they need for their expenses to "invest" in bitcoin is not investing.
Instead they are gambling.
So one of the most important things to contrast investing from gambling is to make sure that you do not need the money that you are putting in for a significant period of time. Surely I have been recommending 4-10 years or more, but there could be ways to have tighter (shorter) timelines, and still not be gambling because you don't need the money for a significant amount of time that you calculate with some intention, especially if you are starting to use less than 4 year timelines...
@Jay you have really impacted a lot of knowledge on me which has been helping me on my Bitcoin journey I could remember when I came here with a less knowledge about strategies of accumulation using DCA, with this tread I was able understand and add the knowledge I have gathered from here to my existing ones which has been very helpful.
Referring back to your comments, of course is very unwise to uses the money that's meant for other expenses to invest because he is likely going to get into trouble later on because when the need will arise he will be left with no option but to sell off the investment. Perhaps this could be referred as an ignorant investor whom sees a possibility of getting into trouble if taking a certain decision but still went ahead.