Ugh, I am in a related boat. My husband was offered the opportunity to work in AUS for 6 months, and I am waiting to hear back from the University I work for if I'll be allowed to take a leave of absence to join him. It's not looking promising that the leave will be granted. I'm in love with what I do and the people I work with...but I don't know that I could live with myself, passing up the opportunity to live in AUS for 6 months...
I have a friend who was in the same career path as you - though, he actually lost his job in UK, and decided to travel Australia- he's now living with his Australian girlfriend (in Oz) and working as a telecom engineer aross there - probably 3 years now!! He's the same age as you.
I'm 46 years old, , and after 5 years of taking an annual 4 week holiday to visit SEA (mainly Indo), i decided to pack my job in and travel for at least two years - yes, I have a decent job, a mortgage etc.... but when you feel the need to go, you know it's right.... my company heard I was planning this and they were good to agree to a 1 year sabatical... just waiting for my company to release me once they get a replacement......
Don't think you're too old at mid 20's... i've met many people of all age groups who have given up their "previous" life to allow them to travel.... not everyone who wants to travel has degrees.... nor do we have to depend on degrees to find decent jobs.... go for it and enjoy yourself wherever you go
Just do it.
If you plan to visit SEA, i can offer you some advice