It depends on where you live. In a large city it's easier to leave luggage at the train station for example.
In London that shouldn't be a problem at all.
I've been hosting for a year and a half now myself.
For more than a year I always let the guests who asked leave their luggage until that one too many... (flight in the evening and she sweetly but slightly helplessly demanding, leaving me somewhat drained). It just infringed into my own time too much.
And when guests give an approximate pick-up time it's usually off a bit - they arrive either far earlier or later. Since I have to be home to lock the front door the 'waiting' situation mentally and in reality claimed my time.
I was never really free of those guests past their earlier check-out, and during busy main season this was thus slowly adding to an increasing feeling of burn-out.
There is excellent storage possibility at our main train station which is much more central than my home. And travellers by train or to the airport have to go through there anyway,.
And most guests don't really care whether they can leave their bags with me or at the station for a fee.
I began to answer to any guest asking that I normally do try to accommodate guests, however it unfortunately wouldn't be possible on their departure day for longer than 1.5 to 2 hours after check out due to plans of my own (even if my plans are only to to stay at home). And those guests since then have either taken me up on the short offer while going for breakfast or just said 'No problem, I'll go to the station - it' easier actually'. And we've all been happy 🙂