I guess what the op means by edc is a light for general purposes 24/7. A 100 is enough by those standards. It would be another topic if a work light is what is needed because the OP might have specified if it would be used for work, looking at crawlspace and the like and I think that work light would not really be an edc 24/7
That again assumes that your life is exactly like someone else's.
Where I come from, edc means what you carry every day...as in, its normally with you. After that, it means NOTHING. If MY every day usage means finding my keys if I drop them, and YOUR every day usage means patrolling a warehouse for vandals and trespassers, we are NOT going to find that the same light does it all.
If MY everyday use involves needing to see a lot of detail and YOUR every day use involves presence/absence type vision...the same light may not work for both.
Also our level of EXPECTATION is also a factor.
If you think about it, really, we see better in day light....which results in about 10,000 - 25,000 LUX on what we are looking at.
So, anything LESS than that, will mean that we don't see AS WELL.
So, if you have a 100 lumen light, to GET say 10,000 Lux on a target...you need to concentrate those 100 lumens into a very small circle of light....and/or, be very close.
If you have a 1,000 lumen light, you STILL have to concentrate the lumens and/or be very close to get that Lux, but, not AS concentrated, or, as close.
So, to call something "enough" is misleading to someone ASKING how much is "enough"...as its masking the fact that there are a LOT of compromises that are made in lighting....for practical reasons.
So, what is "bright enough to see", may not be "bright enough to see as well as if you had something brighter".
Obviously, you don't ALWAYS need to see as much as at other times...but, its nice to be ABLE to see better.
Do we buy cars that can only go 45 mph, as there's simply no need to go any faster? Obviously, you'll still get to your destination at 45 mph...and there are no areas where you HAVE TO go faster than 45 mph as a MINIMUM speed limit.
Is it BETTER to be ABLE to go faster than the MINIMUM? Sure, usually it is...and its nice to have the option.
How about how far you SEE with your head lights?
Ever wish they showed everything a bit dimmer, because you thought you could see well "enough" anyway with dimmer headlights?
Same for the edc lights...there are very few cases where a higher high is a bad thing. Just like lower lows are a good thing....higher highs broaden the usefulness of the light...you can SEE MORE.
"Enough" is a subjective compromise. Especially in this case, where "enough" means "What you settled for instead of daylight".
So, as it IS subjective, a lot of people who are used to a dim light, and don't NEED to see much...feel that they don't WANT TO see more. They then tell YOU that you don't NEED TO see more either.
I'm just pointing out that this is the context of the responses here.
Frankly, IMHO, the light with "enough", that can be edc'd, has not been invented yet.
When we can have daylight from a pocket sized light, in a large enough pool so as to allow our eyes to use it all, with high CRI so that the objects are rendered accurately....THEN I'll call that "Enough".