Erechel
Explorer
Oh, for God's sake! The GRAPPLE has disadvantage to succeed, it is MORE DIFFICULT to make a grapple to choke than a simple grapple.Grapple doesn't grant disadvantage, only reduces movement to 0. Restrained grants disadvantage. Also your example doesn't help your case for game balancing. Also when we are talking about spellcasters, wizards aren't the only ones. Most casters have a limited number of spells they can learn, so a lot might not have the defense that wizards might have.
Player: "I want to choke the wizard"
DM: "Make an Athletics check at disadvantage"
Player: "I've rolled a 7 and an 18. I have Athletics +7, so it's a 14"
DM: "The wizard rolled a 12, you succeed. The target is grappled, and can't cast verbal components. He stabs you with his dagger"
See?