There was an interesting snippet about an ex-AEOp a year or two back.
He had joined the RNLI. The Cox'n said that ordinarily he was too old and unskilled as he was not a boatman. However at interview he had said he had spent many hours on SAR helping the lifeboatmen and now he wanted to become more involved.
I know a Nav and two other AEOps who were afflicted with the SAR bug. All jumped Nimrod to Sea King and passed the aptitude tests and had full and fulfilling careers.
There are opportunities there but there are also severe limitations on professional advancement at the upper age limits as many other 33 year olds will be on the down slope.
As others say if it's what you want then go for it.
A thought for the interviews:
At 33 you will be new, keen and enthusiastic. You may meet 33 year old, embittered, cynical and exhausted. You will bring your enthusiasm to the team and, with sensitivity, hope to contribute to a flagging team.
Bull**** maybe but ? ? ?