Many New Cars Have No Spare Tires

I'm a "millennial" and I can easily change a tire and prefer to drive a manual. Bought my first nice car last year, a BMW 135i in a 6 speed manual. And it doesn't come with a spare! Crazy but most if not all of BMW'S newer cars come spare-less. I think it's due how wide wheels and tires are today plus the larger diameter. A 285 wide wheel would be hard to store away and still have a usable trunk on my 135i. Hell, my 15" rally wheels won't fit into my Dart's factory spare location with trunk mat.