Ebay has some cheap waterproof fleece clothing for those that can get out to get their heads cleared. My youngest can't do that so we drive around looking for Christmas trees and lights. Hopefully more go up soon - we're looking at the same houses every night. If you've others at home Board games are great too for alleviating the boredom and giving everyone a laugh - no matter what age you are, TV just rotting our brains I think it makes you more depressed during the lockdown.
Certainly watching any news outlet does, it`s just relentless doom and gloom, totally focused on the negative and never any positives.
As you mention there, there`s nothing at all for the kids, as everything for them is shut ( other than playgrounds in parks )