This should be a fair timeline.
Fall 25 - mission
26 - mission
27 - redshirt
28-31 - 4 yrs of competing
That’s byu kids typically finishing school at 25-26.
The idea that 25 yr olds shouldn’t compete against 18yr olds needs to not get a foothold, IMO.
I don’t have an opinion yet on how JUCO time should fit in the mix.