Use of both ceceo and seseo by individual speakers without register distinction

Noted the other day in the speech of a couple of elderly working class immigrants from Cádiz in the Poblenou district of Barcelona. Ceceo (the characteristic Andalusian lisp which assimilates /s/ and /θ/ to [θ]) has traditionally been considered socially inferior to seseo (assimilation to [s], associated particularly with Seville and New World dialects), as…