Colleague, I have small database and C++ program with sqlite3 library.
There are several table with connection by Foreign key:

CREATE TABLE companies (
    id     INTEGER PRIMARY KEY
                   UNIQUE
                   NOT NULL,
    name   TEXT    NOT NULL
                   UNIQUE,
    userId INTEGER REFERENCES userlist (id) ON DELETE RESTRICT
);

CREATE TABLE drivers (
    id        INTEGER NOT NULL
                      UNIQUE,
    surName   TEXT,
    firstName TEXT    NOT NULL,
    lastName  TEXT    NOT NULL,
    companyId INTEGER REFERENCES companies (id) ON DELETE CASCADE,
    PRIMARY KEY (
        id AUTOINCREMENT
    )
);

CREATE TABLE whiteList (
    id        INTEGER  NOT NULL
                       UNIQUE,
    idName    INTEGER  NOT NULL
                       REFERENCES drivers (id) ON DELETE CASCADE,
    carNumber CHAR (9) NOT NULL
                       UNIQUE,
    PRIMARY KEY (
        id AUTOINCREMENT
    )
);

CREATE TABLE access (
    id     INTEGER PRIMARY KEY AUTOINCREMENT
                   UNIQUE,
    carId  INTEGER NOT NULL
                   REFERENCES whiteList (id) ON DELETE CASCADE,
    zoneId INTEGER NOT NULL
                   REFERENCES zones (id) ON DELETE CASCADE,
    UNIQUE (
        carId,
        zoneId
    )
);

There is pragma before DELETE execution in C++ code.

rc = sqlite3_exec(db, "PRAGMA foreign_keys = ON;", NULL, NULL, &zErrMsg);

But when I try delete company, ON DELETE CASCADE doesn’t work at all.
When I try delete driver, I can delete car only together. Access doesn’t change.

So, understand anyone why?
Please help.