Over here in Europe, where there's no lawsuit culture, some laws (not necessarily accessibility-related, our legislation in that area is far weaker) are violated almost without repercussions. When the government is the only party that can bring charges and the government is complacent / ineffective, nobody actually gets charged and nothing gets done.

There's also the problem of incentives, if you can get a lot of money from a lawsuit, you have a far better incentive to sue and find a competent lawyer. You may even deliberately look for and sue violators as a moneymaking scheme, some companies in the US do this. This puts pressure on businesses to comply with the law. Even if you're piss-poor and never sue anybody, you still benefit.

If this lawsuit culture doesn't exist, the best you can do is write a report to the government and hope they actually act on it. Many people don't know how to write these, and since there's no money in it, getting a lawyer to do it for you is an expense that nobody is going to help you recoup.

The people handling these reports don't help either, they're usually 9-to-5 salaried employees who aren't judged too hard on performance, so they have far less of an incentive to actually pursue cases.