If it was a lot for him, Din could only imagine how much more it was for Luke to be here now like this with them. "Is it -" Din started and paused not even sure what he wanted to know, much less if he deserved to know it. "I'm sure that can't be easy for you." He said finally, knowing that anything he said would fall far short of what someone who knew Luke might be able to say to him. He didn't know how he'd have felt if his own parents showed up here, he could only just remember their faces, having to meet them now as a grown man - a mandalorian would be a kind of situation he couldn't even begin to imagine.
He nodded when Luke said he was sorry for his parents, it was more than most said - though Din didn't regularly go around telling people about his family. "No one should be alone," he agreed, clan was important a family was important, the tribe was important. It never ended well for those who were alone, Din had always come back to the tribe, again and again, helping to support them all, to care for the foundlings, and then he'd made his own clan when he'd claimed Grogu, now though - now he didn't have the tribe, he didn't have Grogu, he was a clan of one.
Talking with Luke was proving to be a complicated thing, between learning about the Jedi and sharing parts of himself he'd never given away before, to the emotions that ebbed and flowed within him. It had him remaining quiet as they looked out over the water.