"... "Daisy Daisy give us your answer do...." quite embarrassing, and patronising."

Good point. Sometimes (depending on whether a retirement residence or a nursing home) you could end up 'singing down' to your audience. One performer friend of mine was doing a retirement home gig for the first time and decided to do his usual repertoire rather than dragging out the old chestnuts. Afterward one of the residents came up to him and said, "Thank you so much for not making us sing 'You Are My Sunshine'!"