Every strategies has it's prons and cons and there are several reasons for investors choice of strategies and there is no reason for this arguments or making any forms or comparisons. However, it seems that you are misunderstanding the Idea and concepts of the lump summing such that the fact that any investor will option to make the use of the lump summing as a strategy does not necessarily means that there was no provisions made for emergency funds or to have not taken care of his other needs and probably might not even be as a result of fomo. The Idea of lump summing has more to do with investing right away with a huge sum of money readily made available for investment after ensuring your other needs are taken care of including emergency funds which is Very important as individual even without venturing in to investment.
I perfectly understand your point, and I have no intentions to argue but rub minds together, share ideas and POVs in order to learn and unlearn, isn't that the purpose for this?
Well like I said, I totally understand your POV, but it appears it is you who misunderstood mine, I'm not entirely saying that Lump-summing is a bad person ineffective strategy, I'd never condemn it. And yes every strategy has its prons and cons, and the fact I'm trying to state here is that, lump-summing COULD make one forget to set aside some funds for other things, especially for investors who are ignorant about having an emergency fund and not that it's an ineffective or a strategy that mostly leads to losses.