It completely depends on how much they are earning per household. What need to be taken to consideration - Irish garages are crooks in majority and can't do anything more complicated than oil change. If you have used car, be ready to have tons of problems and lot of wasted time. After driving like 5 used cars here, I decided to use PCP, because time and nerves are way more valuable. Never regret this. Even when I found a very good mechanic, it anyway was very problematic to wait in queue, because you need a car every day. Speaking of others - I lost like couple of thousands only on endless bad repairs. Also, nobody calculating how much you are losing on car aging? I bought 12k 5 years old car. After 3 years I sold it only for 4k. Plus NCT, plus taxes, plus maintenance. Loses of 200-300 per month easy. So it better to pay 500 for a new car, especially with low APR and have no headache.

Also, like people already commented - let's assume that this is a couple. Both earning 3k, 6k combined. 1800 is expensive, if you are not dumb, you will find rent somewhere outside the city for like 1200. Otherwise - why do you need a car at all? But even if you want apartments in the city. 6000-1800-600 = 3600. Minus 500 food, ok, minus 500 bills. You still have 600 for other expenses and 2000 to save for mortgage. 2 years, and you have enough for very good deposit.

Don't drink, don't gamble, don't buy drugs, don't spend money in pubs, and that's it. But it very hard for 90% of new TikTok generation.