As a parent of 4 and 6yo, who NEVER used tablet and their lifetime usage of smartphone can be counted in minutes I'd like to point out different fact which seem

As a parent of 4 and 6yo, who NEVER used tablet and their lifetime usage of smartphone can be counted in minutes I'd like to point out different fact which seems to be completely forgotten besdises the social aspect/addiction - child eyesight is developing and while before you saw myopia at university students (caused by extensive reading of materials), you can see it often at small kids nowadays (I just read press release from Czech opticians days ago that 70% of pre-schoolers are using smartphone daily) caused by staring at screen (from short distance) for long periods of time. FFS people, don't you value eyesight of your kids? I ruined my eyesight by staring at smartphone displays in last 12 years (it was also my work for few years), so I am very vary what can smartphone usage cause.