My first tattoo was long, long, long before I met DH. Not liking my tattoo=no problem. Trying to tell me I shouldn't have one or being vocal or annoying about it=big problem. In DH's case, neither one was an issue. He likes my tattoos and has since gotten some ink himself.
DH and I did talk about the design of my more recent ink-but he didn't get any say in whether or not I got one. If he hated the design and could articulate why, I would have probably considered something different or reworked what I wanted. But he would never be the final arbiter on whether or not I got one. Or on design. If I really loved it and he disliked it, I would still get it.
He has done the same with each of his. I like one, don't love the other (though it isn't awful or anything, just not to my taste). If he were the sort to get something racist or awful tattooed on himself, that would be a different issue (but it also would never come up with us).
I would not have let him, or anyone, talk me out of getting one altogether.
His folks will probably have a full-grown cow if they ever see his (or mine). But their probable overreaction was not something I took into account when getting mine done.
Edited to fix typo. D'oh!