I think “euphemism” is a dangerous word.  The dictionary gives a more measured approach:

A figure of speech that replaces harsh or unpleasant terms with milder, vaguer ones

…

A mild, indirect or polite word or expression used to replace one that is considered too harsh, blunt, vulgar or unpleasant.  They are commonly used to soften bad news or discuss sensitive topics – such as death, aging or job loss – without causing offense or discomfort

Vulgar, unpleasant and true, I would add.  And actually I disagree with vulgar and unpleasant.

Why not be direct … in words and in eye contact?  Fear, I guess.  Fine as an acquaintance but lacking as a constant companion.

Here are some No’s and Yes’s for me:

Between jobs … Unemployed

Economically disadvantaged … Poor

Workforce restructuring … Laying off employees

Passed away … Died

In a better place … Dead

Golden years … Old age

Resting in peace … Dead

Washroom or restroom … Toilet

Expecting … Pregnant

Heavy-set or Plus size … Overweight or Fat

Letting go … Farting

Collateral damage … Civilian injuries and death

Revenue enhancement … Tax increase

Pre-owned … Used (for cars)

Enhanced interrogation … Torture

Senior citizen … Old person

Having a little work done … Having cosmetic surgery

No longer with us … Dead

Sleeping together … Having sex

Final resting place … Buried

***

And so:

This old person will go to the toilet before he dies