Questions: Relationships

My father recently has his new girlfriend after many years of not dating. They've been together for 3 months now. She's the 2nd woman in his life. The 1st one was my mother (his wife), whom died after giving birth to me. He got traumatized for many years, sought therapists at some point, tired his best raising me as a single father and has been single all these years till recently.

He is thinking of whether to remarry or not if things process and gets serious. My father is an old-fashioned man (he's 50 years old) and isn't familiar with the modern dating world too much. He's going at a slow pace with his new relationship.

Would you remarry if your wife/husband passed away?