"I like these ones." Does that sentence make you cringe a little?
You're not alone. A lot of people feel like "these ones" and "those ones" are wrong — that you should just say "these" or "those" by themselves because "ones" after a demonstrative adjective is redundant.
But others point out that "these ones" has been in use for more than a hundred years and sometimes it adds clarity — like when you're pointing at a group of flowers in a garden. 1/2

