Home-grown players are defined as those who, irrespective of nationality or age, have been affiliated to the FA or Welsh FA for a period of three seasons or 36 months prior to their 21st birthday.
In addition, clubs can supplement their squads with an unlimited number of players under the age of 21 - the category Kelly falls into.
He told Liverpoolfc.tv: "I think it could help, yes. It's the right rule to bring in because it's good for us to get opportunities.
"If you don't take your chance then you don't take it, but as long as you're given it, that's what matters.
"That's what seems to be happening with the home-grown rule and it's helping quite a bit."