Perhaps a better solution would be to approach seasoncard holders and ask them what they want to do? I am very lucky, I can afford three season cards so would carry on paying for mine, my grown up daughter and the lad. But I think that it would be entirely appropriate for the club to check who is in the same position and for those that aren't, postpone the DD until the season restarts or refund money to those that have paid if it gets cancelled. Wouldn't be that hard to administer this. As a side note, when football restarts grounds will be packed to the rafters, social isolation will engender a desire to get out and about, seasoncard waiting lists will grow like nobody's business and the clubs will be well aware of this.