Why My iPhone.11 pro MAX don”t have 3D touch

"These devices support Haptic Touch: iPhone SE (2nd generation), iPhone XR, and iPhone 11 and later.

These devices support 3D Touch: iPhone 6s, iPhone 6s Plus, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XS, and iPhone XS Max."

Extracted from the support article that led you here.

You're not addressing Apple in this user to user tech support forum, and we're not aware of Apple decisions/plans.

If you'd like, you can submit your request/comment to Apple directly, using this form:--> Apple – Product Feedback - iPhone

Thanks and regards

Giulio