Post about linguistics, but they used i.e. when they meant e.g.

If they start bleeding unexpectedly just send them to the waiting room while you look it up on YouTube!

I’m going to guess you did more than just watch videos… If you also applied that knowledge in practical work, you did educate yourself on how to use those tools.

Whatever you made is the validation/grading of your education. IMO that’s a perfectly valid way to get an education, for those kinds of topics. It’s much more risky to grade yourself on abstract knowledge where you can’t directly make something and see if it works or not.

In a society with an ageing population mobility assistance is a growing market.

This is helpful when you get errors: https://ohshitgit.com/