Being the youngest person in the room isn’t a reason to be quiet. Sometimes it’s why they invited you.

Being the youngest in a room usually means you are there for a reason connected to that fact. You notice what everyone else stopped noticing, you have not yet learned which questions are considered settled, and you use daily what some of them only read about. Staying quiet switches all of that off.

Ask the question you assume is too basic, since it is often the one nobody can actually answer. Say what you saw rather than what you concluded. If you get talked over, wait and say it again later, because being new is temporary and worth spending.