17- Don’t worry too much. I am from Scotland and moved to Wales aged 10. Welsh is next to useless in the South and only really heard in school.
Learning is compulsory up to age 14 (Year 9). At age 14/15, kids get to pick their options for further study for the next two school years. If Welsh is not actively taken, it reduces to one lesson a fortnight, that then turns into a basic qualification that may be shamelessly flubbed.
At least this was the case 20 years ago. Things may have changed in school, but in daily Southern life there will be no real life application.
Message me if you need any help, I am local to Cardiff and Newport, the two major places near Swansea.
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