We all start somewhere.
I started as a swamper steering clear of power-saws. What I can do with loppers and gloved-hands has astounded many.
I've been running saw for only going on nine years now. Still things I won't touch that others wouldn't bat an eyelash over. Then again, we work in the woods, 90% of the time, slashing trees out of the canopy others wouldn't dare.
It's all about the skillset(s) you develop and what you grow to be comfortable with.
I've done groundie work for climbers in residential settings, and sometimes we do jobs "sort-of" similar, but working in the woods, and under production levels, is night and day from most climbing work/residential work, and is still vastly different than logging for board feet lumber production with deadlines and *a-holes on your case. There's fifty different ways to approach a tree, and fifty more when you really think on it. There's also a hundred different ways to approach forest/land management (timber, health/rehab, fuel load, one owners' specific desires compared to the next, and on and on.)
Lots of jobs remind me of other jobs, but in thirteen years of tree work, no two jobs have ever been the same.
Stay safe and keep an open, but wary mind.