Awful idea. They should check in peewee. I would even advocate body contact for squirts at Tier 1 level (EHF Elite and E9 around here).
USA Hockey should just start a 'Powder Puff' no checking league as they think it would make the participation numbers swell. The problem will be most kids would never do it. Kind of like how popular would Flag Football be at the high school level...the stigma of being a wussy is too great at that age.
"have you seen intramural flag football at most high schools"
Glad our high school isn't one of the 'most.'