does our membership in Platte County Community Center good at all are YMCAs -- specifically North Kansas City?

Yes and different ones have different things with street Y has racquetball courts

Yes and sometimes in other states if they participate.

Yes

I believe yes

I've went to other Y's.

All of the ymcas in the greater Kansas city area...and i think you get 5 visits a year to any and all other ymcas in the country