If you are a senior golfer and you experience hitting golf shots that fly to the left of the target, then your club face is aiming left of the target as it strikes the ball.
To correct this and get you returning the club face back to the ball with the club face aiming at the target, then work on keeping the toe of your club head up during your backswing and downswing.
The toe of your club head is the far end of the head that you can see when the club head is addressing the golf ball. On your backswing, as you move the club head away to the right of the golf ball, the toe of the club head should point upwards to allow the club face to rotate slightly open. If you swing away and keep the club face aiming towards the ground as you do this and keep the toe and heel of the club head horizontal towards the floor, then this actually closes the club face (results in it aiming left of target).
Try the following. Hold your golf club horizontally out in front of you as though you were going to hit a ball from a waist high position. Swing the club horizontally around you to the right as though you were making a baseball swing. Look at the club head as you do this and you will notice that the club head rotates clockwise as you make the swing back. This is a natural movement and response to your arms and hands rotating clockwise as they move around you.
Now take a golf swing with your golf club and swing back to waist height, keeping the club face aiming at the floor. From this position, turn your body towards the target as you swing the club head back down towards the ball. As the club head reaches the ball you will see that the face is aiming to the left of the target and as a result of this, the golf ball will fly to the left of the target.
Now swing to waist height again and this time, allow the toe of your club face to rotate clockwise so that the toe of the club head points upwards. Move back towards the ball, keeping the toe of the club head pointing upwards and you will now see that the club face returns back to the golf ball aiming more to the right than before. Work on doing this slowly until you are returning the club face so that it is aiming at the target when it returns back to the ball.
Keeping the toe of your club head pointing upwards during your golf swing allows you to return the club face back to the golf ball so that it is aiming at the target and as a result of this, you will start to hit much straighter golf shots and see your accuracy really improve.