overprotective
Protecting someone too much so it holds them back.
Overprotective means protecting someone so much that it actually limits their freedom, growth, or ability to learn from experience. When parents are overprotective, they might not let their child ride a bike without training wheels long after the child is ready, or they might call the teacher to complain about every small problem instead of letting their child work things out.
Being protective is caring and responsible: you wear a helmet when biking, you look both ways before crossing the street. But overprotective means going too far. An overprotective coach might never let players try challenging positions where they could fail and learn. An overprotective friend might try to shield you from every disappointment or disagreement, even though facing some difficulties helps you develop resilience and problem-solving skills.
Protection keeps you safe from real dangers. Overprotection tries to eliminate every risk, discomfort, or challenge, which can ironically leave someone less prepared for the real world. A child who never climbs a tree, navigates a disagreement with a friend, or experiences natural consequences might struggle more later when facing situations their overprotective parents can't control.