I have a S10+ which is 2 years old, had lots of use. Great phone. Somehow gotten cracks in the screen despite screen protector and case. Still works fine but has a couple of lines across it. From what I can see phone is worth about $450 new but repair of screen would be about $280
From Googling it seems like the battery lasts about 3 years and costs about $100 to replace. But I couldn't work out what 2yo phone would be worth. Probably not much.
Would you repair screen, or give to your kid and buy a new one? I do use my phone for work a bit so decent phone important.
Thanks
Can you afford a new phone? If you can then give it to your kids as is and buy the new phone.