Yes, ADA casinos, are legal and regulated in the United Kingdom. The UK has a well-established regulatory framework for online gambling under the jurisdiction of the UK Gambling Commission. The commission oversees and licenses online gambling operators, ensuring they meet strict standards of fairness, player protection, and responsible gambling.
However, it's important to note that regulations and laws can change over time. Therefore, it is advisable to consult up-to-date information or legal experts to verify the current legal status of ADA casinos in the UK, especially if there have been any recent regulatory updates or changes.