How do you justify your birkin?

Hi all! My dream bag which I can’t stop thinking about is a B25 in blue jeans colour (from GPC mode), I want this colour since I gave birth to our ivf baby boy 👦

I live in London, average area- 3 bed flat (because it’s new and we love it - no plans to move soon), my income is average I would say but my husband is on a high income (not millionaire though 🙈)

I very often consider to purchase the bag but then I think that no one will believe it’s real plus we live in London which is quite dangerous lately !

For those in similar circumstances, have you ever been called out?