Maybe, maybe not. There is also other factors that his family may be considering which attribute to their support.
-Like...maybe their non-support would be crushing his life-long dream...the thing that has been the thread of his existence since he was a little boy? What type of husband or dad to they have then without giving it another try. Would he resent them and create a whole swath of family relationship issues?
-Maybe these concussion symptoms will go away permanently like they have with some other athletes?
-Maybe they trust his decision and instincts on what his body is telling him, how he's getting better?
-Maybe they don't understand the seriousness of major concussions, and symptoms long-term, therefore don't realize the risk he is assuming (they are after all from Sweden, and likely don't get to see this injury as much as we do here in the States/Canada due to our detailed exposure to many, equally as brutal sports (e.g. NFL football) and the hundreds of stories we've heard about this wrecking lives and even resulting in death)
I just don't imagine that this is an easy decision and they're like "who cares, the hell with him(dad/husband/son)...let him go play and keep bringing in the big dollars...if he's a bowl of jelly in five years...so be it!"
Anddddddd now we're genuinely questioning the support of his family. Only Franzen lol