I believe that professional sports should not suffer from this problem, since the elderly are mainly affected by coronavirus complications. Moreover, the only ongoing national football championship in Europe (Belarus), which takes place even with spectators in the stands, showed the absence of any problems in this matter. Therefore, if the majority decides to continue the championships, then the minority must obey them, or remain outside the game (like Danny Rose).
Well, people return to their jobs across the Europe. I don't think that football players are somehow different and exceptions for them is needed. Though, we obviously don't want to see players getting infected. You say virus is most dangerous for elderly people. It's true, but Montpelier player Junior Sambia was income after he got COVID-19.
Belarus playing with spectators, but I see that one game next weekend is postponed because one player got Covid-19.