For many people in many places you need a car to get around, it isn’t a luxury, if a kid is living at home and going to college (or working) , parents working,it is not a luxury at all, it is the way most areas are set up. Where I live and was commuting into the city, I could theoretically have walked to the train station (would be about a 35 minute walk), but if you add that to a nearly 2 hour commute at times without the walk, it would have really been difficult, especially in bad weather (riding a bike sounds great, but you don’t know the roads to the train station, not set up for bike riding at all, or even walking).
Young people have always been prohibitively expensive (boys more than girls), and it is one case where the law allows age discrimination (funny part it doesn’t as far as I know with older drivers, who are higher risk as well) because they have the statistics that back up the risk numbers. Unfortunately even liability only insurance is expensive for young drivers, because of the risk of them being liable for an accident to someone else.
There are ways to reduce the bill, there is a lot of information out there about cars that are going to have lower rates, that have to do with theft (if you have comprehensive or collision), ease of repair after an accident (Teslas are bad for example, because of the way the battery pack is installed, if you get into an accident from what I have read, the battery pack is often DOA, which is like a 15-20k bill alone). Cars with high powered engines or certain luxury brands are going to be higher.
Liability only, even with a policy with relatively high coverage , will be the cheapest. Basically have a car that if the damage is minor, you can pay to repair it , and is old enough that likely if you have a bigger one the company would total it anyway. Newer cars it makes sense to have comprehensive and collision, and if you have a loan you have to have it, but if you can get away with a good older car it can save you a lot.
The other factor is where you live, if you live in a city or a densely populated area, rates are going to be higher.
There is no easy answer to this, insurance companies are a lot more risk averse these days, and they want to make money out of the insurance pool (in prior decades, they used to make money by investing the float, the policy money that isn 't needed to pay off claims, if they broke even on the pool itself or even lost modest amounts, they didn’t care; in the last 10-20 years their model is making money off the actual premiums as much as posible and investments are just gravy on top of that.