This one feels random… when did your kids start clipping their own fingernails?
I don't remember how old they were, but it was young enough that they still fully believed in the Easter bunny and ds was young enough to not care that I bought a 3 pack of nail sets off Amazon that were pink, purple, and yellow and put the yellow one in his Easter basket because that was the one he used for years until he got a more 'manly' one in his Christmas stocking on more recent year. So it's been a while, long enough that the manly one has been replaced and I don't remember how many years ago it was lol. If I had to guess, it might have been when ds was 6 and dd was 4, and I would have helped dd for a while still.