The mooted expansion will likely be very different to what you imagine.
You will never be the valued employee you may have been had your career started 30+ years ago. You will be trained down to a price and as quickly as possible rather than to a standard.
They will use words like "safety", "lifestyle", "fatigue management". They will try to convince you they care about your wellbeing and work life balance. They will exhibit the exact opposite traits when it suits them. Complain and you can/will be replaced by another candidate keen to "make a go of it". The regulator will continue to give concessions to airlines in the interests of workforce flexibility and efficiency. They will do it with a perfunctory "risk analysis".
You will spend your life knowing that there is always somebody who will do your job cheaper than you and that outsourcing is always an option. You will spend your life making compromises that will see you get less and give more.
Finally, that family you are reluctant to leave, may wind up leaving you once the carcinogen that is airline management gets a hold of you.
If you love to fly, get a ppl and go flying. Have a day job that pays for it.
Go on holidays with that family of yours and put them ahead of your career. Live happily ever after while you watch this industry falter.
Sincere apologies for the negativity but you did want to be frank. All the best!