How is this allowed, given that the laws of the game do not allow it in main stream football?
Quoting from Part-Timer's post:
The Laws of the Game specifically forbid players who have been replaced from returning to the game. Leagues, other than for under 16s, women or veterans, that are doing this are in breach of FIFA's rules. Any change to the Laws has to go through IFAB. They have approved it for 'recreational' football only and the FA has decided that in this country that is anything below Step 7.
Perhaps the Danish FA class level 5 and below as 'recreational football'.
We also have 10 minute sin-bins for bookings which has lead to very little dissent in games.
But the reference to 'recreational football' is only in terms of this proposal, i.e. it hasn't been allowed in 'recreational football' previously.