Therefore, before being able to invest, we must be able to increase our income and perhaps reduce our living expenses. By doing these two things I think anyone can invest in bitcoin.
I agree on the part that working on increasing your income is necessary on the longer run for you to reach your accumulation goal faster, but it is not a must before you start investing, what I don't agree to is when you said that we should reduce our living expenses before we can invest in Bitcoin, no.
You must no live like a peasant before you can invest in Bitcoin and be successful in it, just invest what you can afford, invest base on your level, don't be over aggressive when you ought not to, because financial management is key, especially for a low coiner, so just invest what you can afford to let go them I assure you, you will be fine.
So the point is like this if you can't invest in bitcoin, don't force yourself to invest in altcoin. Because even though the price is cheap but it has a super high risk.
Anyone that can invest in alt or shit coin can invest in Bitcoin, it's just ignorance or greed that makes people invest shit coin that are like gambling, so someone saying that because he has a very little discretionary income he can't be investing in Bitcoin but shit coin instead, that means that the said fellow is either ignorant or he is just being greedy, so he prefers taking a huge risk because of 10x to 100x that is extremely unlikely to happen.