I'm an adult student. Beginner but I've watched a LOT of martial arts bouts and I cut my teeth in Karate Kid (the original).
This place is great. The beginner's class I'm in is a mixed age group and skill level. Sensei is very adept at switching things up so he's teaching to each individual's skill level and age. This isn't a 'one size fits all' program. I feel very welcome there and I have already learned an amazing amount in just a few classes. I look forward to class every week. It's rigorous exercise but Sensei is patient with people who are trying and the other students have all been very helpful and welcoming.