I received the full course of vaccinations, primarily for employment reasons.
The electrical engineering firm which I work for was largely sustained through the pandemic by a major refurbishment project at one of the biggest gold mines in the world. This was an offshore project, and so desperate was the mining company to have these works completed that they agreed to pay for the work force's hotel quarantine time - both before entry into the host country (Papua New Guinea) and before repatriation back into Australia. At that time, vaccination for COVID-19 was compulsory for all persons entering either country.
To the extent that I was pleased to continue working through the pandemic and beyond, I guess I am "glad" that I received the COVID vaccine.