Now that you know it’s likely a wheel bearing, an experienced mechanic should be able to lift the car and check for play and noise to confirm this. It should be confirmed/diagnosed instead of just blindly proceeding with replacement.
Wheel bearings do wear out and need replacement occasionally. It’s not unheard of for some vehicles going 100,000 miles on these bearings, but sometimes wear out sooner. Each wheel has a wheel bearing and we ask a lot from them. The whole vehicle and everything in it is supported by the 4 bearings and the car actually rolls down the road on them.
To give you an idea of cost, you can google this question and find a site that allows you to enter information about your location and about your vehicle. Also, you can call a shop or two and inquire.