See, you're an example of someone older who SHOULD be working since you actually WANT to rather than HAVE to. More power to you and I hope you get to keep working for exactly as long as YOU want to!
Cases like yours isn't what's driving the increase though. A combination of economic desperation and pro-corporate gaslighting is forcing and/or coercing people who would prefer to retire to keep working many more years. THAT'S the majority situation.
The Tories would if someone found a way.