They also need lots of toys/enrichment in their (at least 32 x 21) cage, have special requirements for a safe environment, and avian vets are quite costly. Have you researched the hazards? Birds are not cheap or low-maintenance pets! I speak from experience as I’ve had birds for decades. Make sure you’re prepared. Also, are you committing to caring for the budgie(s) for the next 15 years or so?

Budgies are really flock creatures and tend not to bond as strongly to people as some of the other species do. Thus a budgie buddy would be good. People are usually not prepared to adequately meet the social needs of birds.