"I'm not skilled at gardening and i don't have the time/energy to learn, but i really want a pretty garden, so i hired a gardener"
That makes a lot of sense, it's nice to experience that beauty!
"I love writing music, and I can play a few instruments, but my playing skills don't cover the breadth or depth of what I want my songs to sound like, and none of my usual partners were available for recording this month, so I hired someone who's good on sax and another musician who plays an upright bass to help me record my new stuff, and they added a lot of depth to the experience!"
Good call, when you really want the right sound right now it makes sense to bring in people who are available and talented!
"I'm a decent cook and my friends love the food i make, but sometimes I enjoy a really high-quality meal in a carefully curated atmosphere or i don't want to do dishes, so i go to a restaurant and pay a chef and cooks and waitstaff and dish washers to make me a fantastic meal in a nice setting without any of the chores."
Of course, we all love a good time without the usual work sometimes!
"I love music and I play the piano really well, but sometimes I want to hear it played by someone who's really dedicated their career to it, or who plays in a style I'm not experienced with, so I go to a concert and pay a musician for their music, or I buy their albums so I can listen to it at home."
Yes, getting to experience an expert in their craft is a real treat!
"I've been way too busy to take care of myself or my living space lately and it's been taking a toll on my mental health, so i hired someone to help me tidy up this week and then went to a salon to get spiffed up so I could feel better about myself, and i paid those professionals for their work and education and experience and skill."
Good on you, self care is so important!
"I'm not very experienced with sex and and would like someone else to show me what it can feel like, or I want to enjoy sex at a time when I don't have anyone available, or I enjoy sex and am pretty good at it but I want to experience it a dedicated atmosphere with someone who takes it seriously, or I want to see what all is possible when someone is really an expert at it and treats it like a set of skills they've spent a long time working to master, or sex makes me feel good and i could really use that good experience in my life right now, so I paid a sex worker to help me achieve that goal."
If you think the last one is somehow fundamentally different from the others, that hiring a professional to provide a service that you want or need for any reason is suddenly immoral because it involves sex, you should probably reflect on why. Because really, at the end of the day, it's not.