Chance/Match my son: 3.5/3.93 weighted CA resident, SA 1500(710/790 Math), Competitive public HS CS major

Given the major is in polytechnic, that makes sense but given OP won’t likely have a realistic chance at CS but will Cyber Security since it’s in a different school, hopefully that will work for them.

But if they want more technical, they should pursue a CS degree then - which will mean not at Purdue (or A&M or UMD), etc.