First of all to care for your tyres you should do a fortnightly check of your tyres pressure and bring it back to the pressures recommended by the manufacturers of both your car and the tyres.
The tyre mechanic is very experienced and can guide you.
Tyres lose pressure when the car is driven and even when it is standing still so you will always need to monitor this pressure.
Under-inflated tyres will result in reduced tyre life. A tyre which is regularly about 20% under the recommended pressure will last about 20% less. So if your tyres expected life is 75,000 Km it will only last 60,000 Km.
Also under inflated tyres use more petrol. It takes more effort by the engine to keep the vehicle moving.
Tyre rotation is also a necessary care factor because there is usually different wear on front and back tyres and also left and right tyres.
Since the only point of contact your car has with the road is the size of four hands you should make sure that the condition of your tyres is of paramount importance, Incorrect pressure makes the car more difficult to handle.
So to keep safe:
Uneven wear can also be attributed to incorrect wheel alignment
Ensure a professional checks these regularly.
Driving at high speed can also cause damage to the tyre because of road hazards and the chance of high temperature build up.
Maintain the condition of your spare tyre so you will always have a replacement tyre on hand when needed.