Gear does matter and here's why. You can start with what you have and also start on a small budget. However once you decide that you want your endeavor to grow and you start pushing yourself to do more, then this is where the gear does matter, especially as it relates to time.
I started a podcast, a YouTube channel, and even a filmmaking business with what I had at the time, but eventually I invested back into that business to actually grow the business. Whether photography, filmmaking, design, or any other creative endeavor as a beginner, just get your start, and slowly build your inventory of gear as you desire to scale that endeavor.
My friend's channel: https://www.youtube.com/user/theratechsolutions/ (he's just getting started on this YouTube journey)