There's doing DIY, and there's having the patience to do DIY properly.
Yes, I do a lot of my own DIY, including plumbing in washing machines. But I do make a point of paying someone else to do something if I think they would do it better. I have an overgrown tree in dire need of pruning; I also have a ladder, a saw, and a good head for heights. But with that task, I would rather pay someone who knows what they are doing, who would do it far more neatly than I would.
Many DIY tasks are a lot more difficult than they look, and there can be a temptation to take short cuts, which would have consequences later.
"Don't have any plumbing sealant? Pass me the Blu-tack." Two days later: flooded kitchen.
Some plasterers say that a lot of their work begins with sorting out the mess when someone has tried to do it themselves. (Plastering neatly is only easy if you know how!)
What does nagging (oops, forbidden word) Sybil Fawlty say in Gourmet Night? "Take the car into the garage, Basil. You're not trying to do it yourself, are you?" And later Basil beats the car with a large branch.