LOS ANGELES — Matthew Stafford says he understands why the Los Angeles Rams drafted Ty Simpson last month, even though they happen to have got the NFL’s reigning MVP quarterback under contract for at least the next two years.“Listen, I’m not 25 years old, and I get that,” Stafford said Thursday after organized team activities at the Rams’ training complex. “So we’re doing everything we can to be as good a football team as we can for now, for the future, for all of it.”The 38-year-old Stafford said he has “constant dialogue and a great relationship” with coach Sean McVay, who called him last month to tell him the Rams were about to stun the NFL by using the 13th overall pick on Simpson, the Alabama quarterback who was not expected to go that high in the draft — or to go to the Rams, who already knew Stafford was returning for 2026.The sixth-leading passer in NFL history then inked a hefty contract extension for 2027 last week, cementing his future in a role that was already rock-solid. McVay has repeatedly stated that Stafford is the Rams’ starting quarterback for as long as he wants to play, even after the Rams used their highest draft pick in 10 years on a quarterback.But Stafford also underlined why the Rams drafted a quarterback when he reiterated Thursday that he’s still …