In a YouGov poll conducted between July 25-29, 59 percent of Republicans surveyed said they would prefer a president under the age of 75. Trump celebrated his 78th birthday in June. Forty percent said they had no preference, and just two percent said they would prefer a president over the age of 75.
Sorry, I rephrased my post a bit. What I meant is that there’s a difference between saying “it would be better if Trump were younger” and “Trump should be replaced by someone who is younger”.