Every individual card game is specified with the respective age limit of players it suits playing with it. These sets of information are mentioned in the card games' packaging, which can be read by the customer. Some card games come in the age limit of more than 10 years, whereas some have an age limit set to 7 years and above.
To clear this doubt, the customers can simply make their kids read the instruction manual, which comes with the card game. If their kid understands all the rules mention in the list, then he/she is eligible to play that easy two person card games. Card games can also be played by adults until the age of 100. They are a fun element to experiment with and can be a spark of any family gathering.