Instead of pretending, why don't we just check out some teams:
Orland Park Sparks: 14 (25 years old Chicagoland softball organization)
Stone City Sharks: 13 (30 years old Chicagoland softball organization)
Power Surge (12U ASA A National champions) 13
SoCal Jynx (12U ASA A runnerups) 13
OC Batbusters (probably the premier travel softball organization in the US): 14
Orland Park Sparks: 14 (25 years old Chicagoland softball organization)
Stone City Sharks: 13 (30 years old Chicagoland softball organization)
Power Surge (12U ASA A National champions) 13
SoCal Jynx (12U ASA A runnerups) 13
OC Batbusters (probably the premier travel softball organization in the US): 14