[Gwynbleidd]

you should tell him the truth that it's difficult for you but learn Spanish anyway not just for them as it is the second most widespoken language and could be a life skill to know. and they should know the language. if you decide to learn the language online i can tell you a place to learn it where i'm learning french. But be forth and outright and try to think of his point of view when you discuss it with him.