I constantly feel the hate for $20 chips on here but I attribute it to age. Every home/non-casino poker game I played in before the so called "Moneymaker Poker Boom" circa 2003 was cash on the table. At that time I was already in my forties and a lot of my poker habits were already formed. Very seldom were chips ever used. In fact the main game I played in was a $20 limit game so a $20 bill was a standard bet denomination.
I don't see why anyone can't count with $20's but for me it's an ingrained behavior that I learned and $25's as a denomination came much later for me so I adapted, I guess most people can't adjust to counting with $20's and since cash is becoming non-existent nobody will ever know how to use $20's. Similar to how most cashier's can't count change back anymore.
I will continue to be weird and use $20 chips in most of my sets as IDGAF (says this old man yelling at the clouds).

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