As someone plays the guitar, you can't avoid that may go out of tune again. If you know know how to tune a guitar to make sure that each keys corresponds to each other, then you are fine. However if you need help, you can user a
guitar tuner or tuning methods that you can use to make it work. There are tips and tricks online that you can utilize and with simple illustrated steps you can make in in tune again. If you know the drill, you won't get worried if it need tuning as you can do it by yourself.