I use to hate this when I played as a youngsetr
You are trying to concentrate on your game while playing and you have local kids using the back of your goal for their goal!
This can be VERY off putting!
Especially when they kick their ball on the pitch and they ask you to kick it back. If you have watched my videos on the importance of concentrating, you will understand that a little lapse of concentration for a keeper can result in a goal!!!
So what do you do?
It’s not worth you arguing with them and asking them to move (because some will not move). Instead pre-warn your manager, coach or parent. Explain what you have read here and that you want NOBODY playing behind your goal.
If you can educate others that is not cool these guys using your goal as their goal when you play, hopefully these local kids will get moved on swiftly, allowing you to focus 100% on what you are doing!
I hope this tip helps?