Since I made the argument that fear of electricity is similar to fear of managing one's investments, I'll jump on @Audreh1's comment here:
Deciding to hire work done is just fine. It is best done when one understands the work to be done and the hiring is not done out of fear. For example, our water heater went out over the weekend and we had it replaced yesterday. I have the capability and experience to do that job but decided, basically out of laziness, to hire it done. It's conceptually very simple: Break two water and one natural gas connection, haul the old water heater up the basement steps on a two-wheeler, buy and pick up the new one, haul it down the steps and reconnect the three connections. But I'm old enough and prosperous enough to take the easy way out.
I can also see where someone who did understand investing would choose to hire it done, spend the money, and be happy not bothering with it. Just like our water heater. Let someone else worry about timing of capital gains, tax loss harvesting, home country bias, QCDs, RMDs, buckets, etc.