The status of CS2 skins cannot change. The assumption that the condition of a skin deteriorates with playing time is incorrect. Skins will always retain the state assigned to them when they are created by pulling them out of a crate or through a trade-up contract.
How the states work in detail
When creating the skin, the skin is given a Float Value assigned. This value then determines the wear status of the skin, 0 would be completely without wear and tear and 1 with a lot of scratches and other signs of wear and tear. Depending on the float value, the Status of the skin as can be seen in the following image:
So you can rest assured and continue playing your skins. They will not change their state unless you have a StatTrak Counterwill of course count up.
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