If he’s nervous, small deposits and plain rules are what matter most, and that’s where I’d look first. When my cousin started out, we went through a handful of UK beginner guides together, and casino uk https://riderbetcasino.net/ was one he ended up trying because the entry level looked manageable. He told me the sign-up was short, the minimum deposit didn’t feel scary, and the welcome terms were easy to follow without a calculator. He mostly played low-stake slots for the first week and set a weekly limit in the account settings, which took about a minute. Nothing confused him enough to message support, and he’s still playing a month later. I’d say let your brother test it with a small amount first.