In theory, I believe, age discrimination in the employment market is illegal in Spain, but it seems to be rife. Many job advertisements for English teachers are blatant about, explicitly setting an upper age limit of 50 or 40 or even 35. Others are a little less blatant, but boast on their website of the youth of their staff.
I am a 51-year-old graduate with a CELTA (B) and teaching experience, though most of the experience was not very recent, and my Spanish is pretty good (C1). I have been applying for work in Spain since last December and in all that time I have managed to get just one interview. Most of my many applications are simply ignored by employers.
I certainly don't believe I am too old to do the job and I don't think students would think me too old to tolerate, but I'm not sure what, if anything, I can do to persuade employers that I am worth interviewing. Has anyone any observations, comments or suggestions to make?