Thinking of buying my DD a swing for her 4th birthday. Can only fit a single swing in the garden which is fine for now as DS is only a couple of months old but I'm future worrying about what's going to happen when he wants to go on a swing too and we only have one? We are thinking of buying a baby seat too but that means we will have to keep swapping them over each time which would surely be a pain. My DD would love a swing so I don't want to deprive her but keep worrying am I setting myself up for loads of sibling arguments later down the line? Sorry if this seems silly, still new to this two parenting malarkey and feel so paranoid and anxious about being fair to them both!