If you can commit 50 years to a bird, then I'm assuming that you're pretty young. Are you in a stable living and employment situation? Parrots need specialist veterinary care and avian vet bills are expensive - a full check up and blood tests alone can cost a couple of hundred pounds/euros/dollars. If anything needs treatment, you may be looking at thousands. If you're likely to move around a lot, or want to work abroad, or if your job requires very long and/or unpredictable hours, or if you're likely to have to complete an undergraduate or postgraduate degree before you find work, then this is not a good time to get a bird.
What about relationships? Children? Many parrots tend to bond strongly to one person and be indifferent or even aggressive towards other people. If you have a partner, are they okay with a pet that may actively dislike them? If you're not in a relationship and hope to find a special someone, are you going to put the parrot first? What if you meet the love of your life and they hate your bird?
Children and parrots are generally not a good mix. Children are noisy and unpredictable and move quickly which parrots may find distressing, and a parrot could do real harm to a child. My parrot and my two year old niece tend to set each other off - they both find the other too loud. The toddler yells and the parrot gets alarmed and yells too, or vice versa.
Do you rent or own your place? If you rent, you must ensure that your landlord is happy with birds and is aware of the damage they can cause. If you live with other people, they must be aware of the changes they must make to ensure a bird's safety - no candles, air fresheners or incense, no teflon in cookware or other products, being incredibly aware of every open window and door, being vigilant about where the bird is at all times so they don't accidentally injure the bird or let it escape. It's a big lifestyle change that a lot of people aren't willing to make.