There is no need to have special game clothes

One of the main disadvantages of paintball is that you need a mask that will never sweat and the clothes need to be washed after each game. Moreover, the clothes should be dense enough to protect against painful balls hitting you.

Airsoft has the same disadvantages. You'll need a mask or special tactic goggles, which also will sweat and very dense clothing that will not miss hitting balls.
In laser tag, you can play with almost any clothing, but in most cases, laser tag clubs provide top camouflage with rental taggers and headbands. Usually provision of such camouflage is included in the price of tagger renting.

But in the summer, laser tag players often play in T-shirts. Such clothing in paintball and airsoft is simply impossible.