Should my mum get the tdap?

Abbie
She will be staying with me for 2 weeks as of next week. Baby will be 2 weeks old. Where I am from and where my mum is from (she is visiting from England) it's not customary to get the tdap - she's a nurse and was baffled by the suggestion but says she will get it done if I want her too. She even spoke to a dr about it who thought it was strange! Should she get it?