No – this isn’t a bad thing. Some of guys masturbate, and others don’t. If you don’t feel like you want to masturbate, that’s completely fine – it’s a personal decision that’s completely up to you. If at any point in the future you decide that you do want to masturbate, that’s okay too. Masturbation isn’t harmful (as long as you’re not irritating your genitals), and any myths you may have heard (such as that it may cause you to get pimples, or become infertile) are completely false.