The darker the ink the more it hurts, however if you apply the expensive recommended creams beforehand it is very bareable, anyone can endure a 20 minute removal session.
Pretty much if you could do the tattoo you can get it removed, first times hurt a bit but I have vague memories that it hurt like hell when I got it done black-out drunk in Aiya Napa, Cyprus as an 18 year old as well.
If you're thinking about removing a tattoo pain should be really low on your list of considerations, I genuinely mean it (both because sessions are short and it doesn't hurt much)
The first removal 5 years ago would leave me bleeding and require bandage changes for a week.
The new tattoo removal lasers leave you feeling like a sun burn for two days. No blood, no bandages.
It will become way more common.