That's why campaigners are urging mums and dads across the country to tempt youngsters away from the games consoles and iPads, and take their families into the great outdoors.
The Wild Network group, headed by the National Trust, is offering parents free 'Wild Time' vouchers to given to the kids as gifts this Christmas, encouraging little ones and their folks to enjoy the British countryside and all it has to offer.
The vouchers can be downloaded free from the Internet, and aim to entice kids with 700 activity ideas, including playing pooh sticks, climbing a tree, building a dam and skimming stones - outdoor fun that many parents will remember from their own childhood.
Andy Simpson, chair of the Wild Network, told the Daily Mail: "Smartphones and tablet computer sales are likely to go through the roof this Christmas and we're encouraging parents to think about swapping some of their kids everyday screen time for wild time.
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