Lots of people masturbate! Even if they don't talk about it, it’s common for people of any gender or age to do it. Even before puberty, children sometimes discover that touching their genitals feels good. If you have kids and notice them touching their genitals, let them know that masturbating is completely normal, but something they should do in private.
People masturbate for different reasons — it helps them relax, they want to understand their body better, they want to release sexual tension, or their partner isn’t around. But most people masturbate because it feels good. Many people think that masturbation is only something you do when you don’t have a sex partner. But both single people and people in relationships masturbate.
Some people masturbate often, others rarely, and some people don’t masturbate at all. Different people masturbate in different ways, for different reasons. Masturbation is a totally personal decision, and there’s no “normal” way to go about it.