Ш-19

HE ДАВАТЬ/НЕ ДАТЬ ШАГУ СТУПИТЬ ( СДЕЛАТЬ) (кому) coll VP subj: human more often impfv often 3rd pers pl with indef. refer. ) to constrain, limit s.o. 's actions, activities etc severely, not letting s.o. do anything independently, without one's permission

X Y-y шагу не даёт ступить - X doesn't let Y take a (single) step (make a (single) move) on Yb own

Y can't take a single step (make a single move) without X's go-ahead (approval, say-so etc).

Сына они всё ещё считают ребёнком, шагу ему не дают ступить. They still consider their son a child and don't let him make a move without their go-ahead.