I guess I'm a ghost, having been vegan for so long. If this is the afterlife, people like you must be why it's Hell, as you're spreading egg industry misinformation about choline - a substance which, in those animal-based regular concentrated doses, is correlated with a greater risk of cancers 1 2 3. Also heart disease.

Despite large parts of the population being under the "adequate intake", a common worry for choline deficiency is about dementia. If plants were so low in choline, you'd expect AD to be a big issue for those who ate more plant-based (as a spectrum) than animal-based food.

Effects of intensive lifestyle changes on the progression of mild cognitive impairment or early dementia due to Alzheimer’s disease: a randomized, controlled clinical trial | Alzheimer's Research & Therapy | Full Text

Here's a trial with an intervention of:

This lifestyle intervention includes (1) a whole foods, minimally processed plant-based diet low in harmful fats and low in refined carbohydrates and sweeteners with selected supplements; (2) moderate exercise; (3) stress management techniques; and (4) support groups.

and the conclusion:

in persons with mild cognitive impairment or early dementia due to Alzheimer’s disease, comprehensive lifestyle changes may improve cognition and function in several standard measures after 20 weeks.

Too short? Perhaps something on the Mediterranean diet, which is a heavily plant-based diet (if you don't know what the MD score is, look it up):

Mediterranean diet adherence is associated with lower dementia risk, independent of genetic predisposition: findings from the UK Biobank prospective cohort study | BMC Medicine | Full Text

We used Cox proportional hazard regression models to explore the associations between MedDiet adherence, defined using two different scores (Mediterranean Diet Adherence Screener [MEDAS] continuous and Mediterranean diet Pyramid [PYRAMID] scores), and incident all-cause dementia risk in 60,298 participants from UK Biobank, followed for an average 9.1 years. The interaction between diet and polygenic risk for dementia was also tested.

...

In this large population-based prospective cohort study, higher adherence to a MedDiet was associated with reduced dementia risk.

Is the MD bad in this way?

Frontiers | Dietary adherence to the Mediterranean diet pattern in a randomized clinical trial of patients with quiescent ulcerative colitis

Results: Participants’ diets were analyzed (MDP n = 15, CHD n = 13). The MDP (n = 10, 67%) achieved a high level of adherence (MDSS score between 16 and 24) vs. CHD (n = 3), (p = 0.030). HEI-2015 significantly increased from baseline to week 12 (p = 0.007) in the MDP and was significantly higher at week 12 compared to the CHD (p = 0.0001). The SIBDQ (bowel domain) showed reductions in the passage of large amounts of gas (p = 0.01) and improvements in tenesmus (p = 0.03) in the MDP. Despite enhanced diet quality and adherence in the MDP, females had inadequate intakes of calcium, iron, vitamin D, vitamin E, and choline and males had inadequate intakes of fiber, vitamin D, vitamin E, and choline. No adverse events were reported.

You'll find that studies on dementia and diets tend to recommend more plant-centered diets.

Hmmmm... if you actually check the literature for choline, it's an "Adequate Intake" recommendation, not an RDA. There isn't enough data for it.

Dietary intake and food sources of choline in European populations | British Journal of Nutrition | Cambridge Core

In most of the population groups considered, the average choline intake was found to be below the AI set in 1998 by the IOM in the USA. Given the definition of AI, no conclusion can be drawn regarding the adequacy of choline intake.