Absolutely! Back in the day, there was no cybersecurity industry, so almost everyone learned hacking and security in their downtime. The roots of the industry are people doing it as a hobby. As a hiring manager, I would always hire someone who does security as a hobby over someone who just does it for the paycheque.

Whatever your background is, think about what you can use for hacking; marketing skills are good for awareness training, people skills are good for social engineering, construction skills for physical pentesting, etc.