It is not recommended to go to a shop to learn tattoos. It is best to go to a training school, because learning tattoos at school is more comprehensive. For people who learn tattoos on a zero-level basis, the teacher who takes you into the profession is very important, and both technology and aesthetics should be of high standards. The school has a good learning environment, with experienced teachers' guidance and many opportunities for hands-on practice.
But it's different in the shop. I can only study as an apprentice. Shops are mainly engaged in business, depending on whether the shops are busy or not, and whether you have time to teach you. Compared with the study time, you can learn the tattoo technique in school for half a month, but you can't learn the real tattoo technique in the shop, because the tattoo artist's technical ability is different in each shop.