Yes you can change how you tie your shoes. I’m in my 60s and I started tying my shoes with a square knot bow instead of a granny knot bow just a few months ago, and my laces haven’t come undone once. It is a much better system than the extra knot for keeping the laces tied. It’s surprising how so many things we do are unexamined, even when we try to question things and why we do them
Isn’t scratching a car stealing the resale value? The owner has to pay to get it fixed to restore the value. Therefore, vandalism is theft. Quod erat up your demonstrandum :)
Also, assault is theft (of peace of mind), rape is theft (of trust), flaying someone alive is theft (of skin).
If you want to stretch the definition of theft to include any harm, even without depriving someone of their property (i.e. the actual definition), you make the word meaningless. There are already words for other crimes.