Michael Strauss is correct on the X-men, both with their ages and the reasons for the decisions. Again, it’s not even disputable. Stan will straight up tell you that’s why he did it. And Vic is correct, that’s also why Stan chose so many alliterative names (in this case, Scott Summers and Warren Worthington, specifically) but it’s an unrelated point.
This is like if we were discussing a paper on the statistics of how many Jews died in the holocaust and someone’s counter argument was about how many Japanese were killed in the Hiroshima bombing… It’s irrelevant. I mean other than “yes, these are two things that happened… in roughly the same time period… but one has no real bearing on the other.”