as he is getting on a bit the seven year rule could be a problem,
lets assume he has 3 kids,
off they all go to a london casino, one which has sensible limits....
he puts the first 50 large down by the side of the table plus another 1500 quid...
his child takes the cash and puts 25 grand on both red and black and 700 on zero,
the child has placed the bet with money 'borrowed' from dad,
if the resulting spin is any number 1 to 36 you lose on say red but win on black,
the child has 'won' 25K and in uk there is no tax to pay on gambling winnings,
repeat and you have your 50k tax free! shame your dad played and lost,
you have a 1.35% chance of zero appearing in either of the spins so in order to not get hit for 25k on any one spin (half your stake) you can cover that with a �700 additional bet on zero (returns 25200).
you retain 48600 of the money 97.2%! or the equivalent of paying tax at 2.8%.
an actuary will reckon that is good value against the chances of a 90 year old living 7 more years,