What are the disadvantages of rubbing the floor with a family car besides wasting fuel and tires, and what is the impact on the engine?

On the whole, there is no harm.

You only need a high speed after stepping on the clutch.

Maybe the engine pressure is too high, but it shouldn't be a problem if you don't do it often.

My car is not a good car either. It happens all the time. There is nothing unusual in the car.

It is also possible that the operation is not good, and it may be semi-trailer.

Anyway, I know that semi-linkage is not good for the car.