There's no universally right answer here
Both paths lead to the same outcome — you, running a trade business — through very different structures. The honest way to choose is to run the same five questions against your own situation: what you can actually afford to start, what the ongoing cost structure does to your margin, how you'll get your first clients, how much control you're willing to trade for support, and how you'd eventually sell.
If you're deciding right now, read Should you buy a franchise? for the buy-side case, or the 7-step launch checklist for the independent path — they're written to be read side by side, not in isolation.