Joe, there is a lot very traditional thinking tied to benches. The ‘traditional’ heights are ancient and based on when men were smaller. People are swayed by this when building what is a major project for most.
My bench is 38” for my 6’ 1” plus 1” work boots. Any shorter and I would ache. Your bench may need to be 47” for comfort.
Building a rigid bench is harder the higher you go, you need a beefier bit of kit!