Hereafter 'Young Adult' means someone of age 18-35 and shall be abbreviated YA.
These answers unanimously declare (per p 332 of Personal Finance For Canadians For Dummies (4 ed, 2006, but note that a 5 Ed (2010) exists) by Tony Martin, Eric Tyson):
If there are no dependents, there is no need for life insurance.
But is the following a sound counterargument? If not, please rebut it.
Even if the YA has no dependents, if the YA dies suddenly, then the YA's parents could earn some money from a YA's Term Life Insurance (e.g. Term ∈ [10, 35 years]; Benefit Amount ∈ [$100,000, $500,000 CDN])?
Without Term Life Insurance, can the parents or YA really earn Benefit Amount ∈ [$100,000, $500,000 CDN], from investing over 10 to 35 years?