The main problems concerning loveual references:
1. Some get shocked.
2. It teaches about love and loveuality in a RONG wrong way.
The main problems concerning violence, blood and gore:
1. Some get shocked.
2. It teaches about killing and stuff like that.
3. ???
4. Profit! ...Wait, what.
Ignoring 3 and 4, this makes me wonder... should M rated be for the same ages as of A rated?