Based on a fair bit of experience in these types of things (unskilled individual doing skilled trade work around various homes/rentals etc), anyone who's capable of doing these types of things while supervised via facetime is probably just as capable of and willing to do them with a youtube or web tutorial.
Sometimes you have to sink a lot of time into finding the youtube videos that have useful information in them. I am always annoyed at the extremely high volume of low quality self help content on youtube. I think some kind of guarantee that you were going to get useful advice or it's free would go a long way.
The return delivery costs are as much as the cost of the tools themselves.
I always tell people wanting to do a job themselves that the first time your costs are the same as hiring a pro, but the second time you own the tools and it is just time.
By the time you'd planned for all the tools and materials you'd need, loaded it into a kit, and shipped it off to the customer, you or the plumber probably could have just sent your business to someone more local.
And in the end you'll have spent more than you would have with a regular plumber, you'll have a bunch of tools you won't need for another 10 years, and the job will look terrible.
Source: had to retile a bit of a floor, too small to interest a real tiler. Guess how it looks now?
I'm not a professional but I cracked a tile on my kitchen counter and replaced it and you can't tell. Likely difference between you and me? My uncle is a tile man and he walked me through the whole process (remotely), from finding a matching replacement tile and grout to what kind of tile glue works best for this kind of tile to grouting and cleaning.
As someone who does as much as I can around the home myself, this attitude baffles me. I consider my tools and knowledge a financial investment: most are used at least monthly, some weekly. I'd never be able to afford living in my home if I paid a contractor to come out every time my toilet leaked. Likewise, my car ownership costs would increase substantially if I paid a mechanic $100 to change the oil or $1000 to service the brakes.
Also, most light everyday home maintenance work like laying tile, building a fence, framing a wall, installing plumbing, etc. is not rocket science. You don't have to be Bob Vila or go to trade school for years to learn how to do it.
> And in the end you'll have spent more than you would have with a regular plumber, you'll have a bunch of tools you won't need for another 10 years, and the job will look terrible.
That part of the business model worked well for Home Depot.