I'll list some of the cons first:
-consider whether you are okay with doing a bunch of tattoos that do not interest you in the least bit for a while.
A lot of apprentices/newly graduated tattoo artists don't start tattooing things that fit in their 'niche' on the regular for a few years, unfortunately. It takes time to get a solid clientele who come to you for projects that excite you. Fine line tattoos are the most lucrative type of tattoo at the moment, as a lot of people dig the tiny tattoo vibe rn. There's not a huge market for colorful/large tattoos at the moment, but that is always subject to change as trends float through.
-you will have to stick up for yourself...a lot.
Customers can be a real pain in the ass when it comes to scheduling and pricing. They want an original Monet for the price of the AI slop from Hobby Lobby, and they want to get in IMMEDIATELY. The social media/emailing/DMs aspect of this can be a bit overwhelming at times too, as most people don't understand that you can't be available 24/7.
-I would highly recommend working at female-owned shops.
a lot of male artists are huge into the whole hustle culture bullshit, and believe that apprentices should go through hell to be able to graduate.
Here is the Pros:
-You get to meet insanely talented like-minded people who inspire you to be a better artist.
Most artists are always happy to lend a hand when you are having trouble or feeling doubt in your work.
-You will meet a wide variety of people from all walks of life.
I've seen all types of people walk through these doors, all with endless stories. From priests, to sex workers, to teenagers, to 70 year old's. You will never get bored of all the different personalities that you will create art for. If you are a conversationalist, you will have the time of your life chatting with people as you tattoo them.
-Non-Monetary tips
its always the best when clients bring in baked goods, books, etc. for their tips.
-You can always sell art prints and such on the side.
People do buy them if they are good quality prints, especially when they have a connection with you and your art.
Getting an apprenticeship might be hard. Do a lot of different types of art and create a portfolio of your best work. I would recommend looking into different tattoo styles and creating work with pencil/pen and also digital art. Showing your versatility is going to be your best asset in finding a shop that will take you in. And also physically bring your portfolio into shops in your area.
Best of luck, friend!