I grew up in a generation where we're taught to check and make sure that the stick is in neutral position before starting the engine. Never taught to step on the clutch pedal before starting. Now, I've never driven a modern manual... at least none of the M/T cars I've driven required the driver to press the clutch before starting, I do understand the concept behind the practice. It's just sheer force of habit to me not to step on the clutch once I'm sure the stick is in neutral.

That said, what can be your last defense would be the handbrake. Having the handbrake properly engaged would prevent the vehicle from surging, in case it was started while in gear. Make sure it's engaged all the time up until the moment you're about to drive away.

Bottom line, if your car came with this safety feature, use it. DON'T defeat it. If your car didn't come with it, chances are, you already have the muscle memory to do your safety checks before starting the vehicle.

Retrofitting this safety feature on a vehicle that doesn't have it is not a bad idea. However, it does take some skills and is not for everyone to do.