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I did a frozen pipe repair in a foyer ceiling this spring, and the customer had a plumber for a brother in law who lived out of town. I couldn't believe this "plumber" actually told him to have me use Sharkbites to fix the pipe. I said sorry. I am going to solder it, so I know you will not ever call me and tell me its leaking again. It did enough damage the first time.
I know many people have trouble soldering pipes. It's really not difficult.
I am sure like everything else, there are a ton of YouTube videos you can watch to learn how to solder pipes properly, for those who are lacking in the skill.
Issues with combustibles nearby, and water in the pipes, are easily mitigated with the proper equipment.