Many places don't have them, but many people who do have access to them are unaware and don't understand the advantage. OP sounded like someone who thought the only option available was going to a hospital and rolling the dice on insurance. I'm trying to encourage people to learn about urgent care. It can handle a lot of common problems and the price is super predictable. Usually it's listed on the web site. (Come see us with a UTI? $125). It's worth learning about as an option. Google urgent care near you! It doesn't solve everyone's problem, but it solves a lot of people's -- and I want the industry to thrive and expand and hence bring down the cost of urgent medical care for everyone.
Absolutely you still need to get there. Absolutely Uber is a good option when you shouldn't be driving.
Don't take an ambulence unless getting medical care on the way could be lifesaving. Don't go to an ER unless getting medical care in the next couple hours could be lifesaving.