If you find it difficult getting in and out of the bath because of the high lip to the bath and the slippery surface on the floor of the bath then there is potentially a solution that is not just standing in a shower.
  The alternative is the shower chair.
  The shower chair is quite simply a seat within the shower enclosure which allows the individual using the shower to sit down rather than stand up the whole time.
Shower chairs are an eminently sensible choice of equipment for using in your bathroom.
  There comes a time in your life when using baths are actually quite problematic, not least because of the potential for slipping and doing some serious injury whilst stepping in or out of the bath.
  Shower chairs allow the individual to sit whilst having a shower and gives them the freedom to wash in relative comfort without strain.
There are two options for incorporating shower chairs in your bathroom.
  The first option and the most expensive is to incorporate the shower chair into your bathroom when you are in the process of refurbishing or remodelling your bathroom.
  This has the advantage of ensuring you make sufficient room in the enclosures such that use of the chair is not inhibited by the space available.
The second option and probably the most likely option for most householders is to purchase a portable shower chair for moving in and out of the shower at your convenience.
  These shower chairs are made from water resistant materials and are robust enough to last a long time in a wet environment.
In conclusion if you are looking for an alternative to the bath then the shower chair may well be just what you are looking for.