My son and I used to go to every single release starting from Thor (2011) and he would always be like "When are we going to see....?"
...and then Black Widow happened. With the exception of No Way Home, if I asked him if he wanted to see an MCU movie, he says he'll just wait until its on Disney+.
It would have been extremely easy to blame his and my apathy towards the franchise on Eternals, the truth is that the quality of the movies took a steep drop with Black Widow as it should have been a Disney+ miniseries at best. Eternals was just more spectacular in its failings.