DeAngelo knows first-hand how big of a role they can play for a youngster. He said he's very close to his grandparents - "I talk to them probably more than the average person does to their grandparents to be honest" - and it was his grandpa Lou who was along for most of the rides to and from the rink, for practices and games, while DeAngelo was growing up playing hockey in southern New Jersey.
"He loved it. He loved being around the game," DeAngelo said. "He did the same thing for my brother, too. Any time my parents were working, or even weren't working, he was at almost every single practice, every single game for both of us. Even if there were two games that day, he'd try to make both."
DeAngelo, 21, recalls the trips to the rink when his family would meet Lou - affectionately nicknamed 'Seeds' - at a WaWa on their way to skate. He'd hop in the car and take his spot to watch his grandsons do what they loved to do.
Fast forward some years, and Lou got the chance to see DeAngelo make his National Hockey League debut last season in Arizona, a moment DeAngelo cherishes.
"It was awesome. I made sure that he was going to be able to get out there," DeAngelo said. "I was hoping all four [grandparents] were able to, but different things came up in different ways. [Lou] wouldn't have missed it for the world, and I made sure that no matter what, we were going to get him out there."