Perhaps you should go back and read the bobcat requirements and see if you can see

1. If Trustworthy, Loyal, Helpful, Friendly, Courteous, Kind, Obedient, Cheerful, Thrifty, Brave, Clean, and Reverent can be achieved with girls in the room.

2. If you can "do your best", "be prepared", and "do a good turn daily" with girls in the room.

3. If you can do your duty to god and country with girls in the room.

4. If a group of boys and girl do a skit or a flag ceremony together.

Honestly, there are often female family members at cub scout meetings already participating.