I have students of all ages: From young 8 year-old children to adults in their 20s to 70s, but the majority of my students are in their 30s, 40s and 50s.
The problem for an adult to learn an instrument is mostly related to the level of concentration, their time management and definitely not to their ability to understand or to learn new skills. If you’re able to manage your time, you show commitment and you dedicate time to practice Oud on a regular basis, then no matter how old you are, you can still become a good Oud player.